A. concentrate
B. look
C. pay attention
D. take notice
Giải bởi Vietjack
Đáp án: A
Giải thích: concentrate on: tập trung vào
Dịch: Tôi mệt mỏi và không thể tập trung làm tốt dự án nghiên cứu của mình.
She hasn't paid as much attention to her children as she ______ since she _______ working.
Which is good for such an old lady like her is that she is healthy enough to cycle.
Unfortunately, the solution to this problem is neither simple nor ______.
We should keep our freezer full ______ it runs more efficiently than an empty one.
Miss White ________ her parents is going to pay a visit to the Great Wall.
It is the underserved ________ that damaged his life and his family.
I supposed, as ______ we all, that the meeting would be cancelled.
..... as taste is really a composite sense made up of both taste and smell.
Her business must be going rather well, _______ by the car she drives.
They fell ______ because they disagreed on the care of their young son.
