B
Ở đây ta cần một danh từ
Danh từ concentration: sự tập trung
=> đáp án B
Tạm dịch: Sự căng thẳng và mệt mỏi thường dẫn đến thiếu tập trung
Choose the answer among A,B,C,D to complete each of the sentences below:
The job was done____________, and we were extremely displeased.
A. incompetence
B. incompetent
C. competently
D. incompetently
Choose the answer among A,B,C,D to complete each of the sentences below:
The more distance a star happens to be, ______________ to us.
A. it seems dimmer
B. the dimmest it seems
C. the dimmer it seems
D. it seems dimmest
Choose the answer among A,B,C,D to complete each of the sentences below:
We put his rude manner___________ignorance of the local customs .
A. down to
B. up with
C. up to
D. off at
Choose the answer among A, B, C, D to complete each of the sentences below:
Could you stand_________ for me and teach my English class tomorrow morning, John?
A. up
B. down
C. out
D. in
Choose the answer among A, B, C, D to complete each of the sentences below:
Up to now, the teacher _______ our class five tests.
A. gives
B. is giving
C. has given
D. had given
Choose the answer among A, B, C, D to complete each of the sentences below:
Up to now, the teacher _______ our class five tests
A. gives
B. is giving
C. has given
D. had given
Choose the answer among A,B,C,D to complete each of the sentences below:
By this time next year, my new house___________, and we can move into it.
A. will finish
B. will have been finished
C. will have finished
D. will be finished
Choose the answer among A,B,C,D to complete each of the sentences below:
Kenny: “ Your hairstyle is terrific!” Linda: “____________”
A. It’s a nice compliment. Thank you.
B. Not at all
C. The same to you
D. Really? Congratulaions!
Choose the answer among A,B,C,D to complete each of the sentences below:
In order to grow vegetables productively, gardeners must know______________.
A. that the requirements for each vegetable
B. what the requirements for each vegetable are
C. what are each vegetables’ requirements
D. that is required by each vegetable