He had been teaching since twenty years before he retired last year.
Đáp án. B. since → for
Giải thích:
Ta có since + mốc thời gian; for + khoảng thời gian. Vì thế trong câu này since → for.
Dịch nghĩa: Thầy ấy đã giảng dạy được hai mươi năm trước khi thầy ấy nghỉ hưu năm ngoái.
Due to ever more spreading poaching, there________ a dramatic decline in the number of elephants over the last decade.
During last summer months, the monastery was very busy, for it is visited by thousand of people who had cross the pass in cars.
A: What_________(think) about the new simplified tax law?
B: It’s more confusing than the old one.
You look really great! _________ (exercise) at the fitness centre lately?
By this time next summer all my friends_________their studies and found a job. I, on the other hand, _________anything.
Not only were there methods and strict rules but he needs to practice them as well.
My classmates were going on a trip to Cue Phuong National Park this weekend.
These days, people who_________manual work,often receive far more money than clerks who_________in offices.
When the article arrived, the editor read the first sentence and then_________to publish it.
The theatre company_________a grant of £6,000 and it is seeking a further £2,000 from elsewhere now.
A: Why did you buy all this sugar and chocolate?
B: I_________a delicious dessert for dinner tonight
The injured_________to the ambulance while the people_________around the crime scene.
Việt Nam currently_________17th among the most heavily plastic-polluted countries in the world, with half a million of tonnes of plastic waste ending up in the oceans.