I found out I’d been taken for a ______ by someone I really trusted.

She really took a ______ to her new neighbor because he’s handsome.

Mind if I take a ______ check on that drink? I have to work late tonight.

Tiến hành nhiệt phân hoàn toàn m gam hỗn hợp X gồm Cu(NO3)2 và Cu trong một bình kín, thu được chất rắn Y có khối lượng (m – 7,36) gam. Cho toàn bộ chất rắn Y tác dụng với dung dịch H2SO4 đặc nóng dư đến khi phản ứng xảy ra hoàn toàn thu được 0,672 lít SO2 (đktc) là sản phẩm khử duy nhất. Giá trị m là:

The committee is being accused of sweeping financial problems under the  ______ to avoid embarrassment.

Working at home on Fridays suits me down to the ______.

Her speech struck a sympathetic ______ among business leaders.

I’m really sticking my ______ out by investing my money in this idea.

Our rival company managed to steal a ______ on us by bringing out their software ahead of ours.

Everyone else was in jeans and T-shirts and I had my office clothes on – I stuck out like a sore ______.

Getting some work experience now will stand you in good _____ when you apply for a permanent job.

He's annoying to argue with because he keeps shifting his ______.

The new evidence sets the ______ for a long and interesting trial.

You were sailing a little close to the ______ there when you made those remarks about his wife.

Three days later, the hikers were found safe and ______.

The doctor's advice is to let the fever run its ______. 

There's a lot of work to do, so roll up your ______ and get busy.

I'll have to put my ______ to the wheel to get this job done.

There's something odd about him, but I can't quite put my ______ on it.

Raising taxes now would put the ______ on economic recovery.

His lawyer put him in the ______ about what had happened since his arrest.

He wasn't pulling his ______, so he had to go.

I want to know who's pulling the ______ around here.

Cho các hợp chất:

a. ${\text{CH}}_2=\text{CH}-{\text{COOCH}}_3$;

b. HCHO;

c. $\text{HO}-{\left({\text{CH}}_2\right)}_6-\text{COOH}$;

d. ${\text{C}}_6{\text{H}}_5\text{OH}$;

e. $\text{HOOC}-\left({\text{CH}}_2\right)-\text{COOH}$;

f. ${\text{C}}_6{\text{H}}_5-\text{CH}={\text{CH}}_2;$

g.${\text{H}}_2 \text{N}-{\left({\text{CH}}_2\right)}_6-{\text{NH}}_2$.

Những chất nào có thể tham gia phàn ứng trùng ngưng?

Politicians tend to pay lip ______ to environmental issues without actually doing anything about them.

Last year's spending ______ into insignificance when compared with the proposed building renovations.

I  was out of my ______ in the advanced class, so I moved to the intermediate class.

Cho các chất: axit propionic (X); axit axetic (Y); ancol etylic (Z) và metyl axetat (T). Dãy gồm các chất được sắp xếp theo chiều tăng dần nhiệt độ sôi là

I think our marriage is on the ______ because of financial difficulties.

We do not believe on the ______ of it that there has been illegal activity by the banks.

The company put the project on the back ______.

Off the top of my ______, I'd say we have about 200 members.

Cho 3,68 gam hỗn hợp gồm Al và Zn tác dụng với một lượng vừa đủ dung dịch H₂SO₄ 10 %, thu được 2,24 lít khí H₂ (ở đktc). Khối lượng dung dịch thu được sau phản ứng là

We had an argument last night and now we're not on ______ terms.

What you say is true, but you've missed the ______ of my argument.

Cho hỗn hợp X gồm 3 ankin mạch hở. Đem đốt cháy 0,05 mol hỗn hợp X thì thu được 2,34g H₂O. Cũng đem 0,05 mol hỗn hợp X cho tác dụng với dung dịch AgNO₃ 0,12M trong NH₃ thì dùng vừa hết 250ml. Biết rằng ankin có khối lượng nhỏ nhất chiếm 40% số mol của hỗn hợp X. Khối lượng kết tủa do ankin có phân tử khối nhỏ nhất tạo ra là

I decided not to go to college but watching all my friends go off made me feel like I'd missed the ______.

Stop worrying! You're making a(n) ______ out of a molehill.

I can't believe Stuart did that - he must be losing the ______.

I'm worried that we're losing ______ of our original objectives.

Years of war have left their ______ on these pretty islands.

A new computer simulator teaches drivers how to handle a skid before they end up learning the ______ way.

Chiếu đồng thời ba bức xạ có bước sóng thỏa mãn ${\lambda }_1<{\lambda }_2<{\lambda }_0<{\lambda }_3$ vào một tấm kim loại trong đó ${\lambda }_0$ là giới hạn quang điện thì động năng ban đầu cực đại của các electron quang điện là :

I advised her to keep a low ______ for the next few days.

I found myself in the firing ______ for my offensive remarks.

We'd better pack the car and hit the ______ before it gets dark.

He has a good ______ for numbers so he always gets top grades at school.