10、Stop talking and concentrate _________ your work.
A: A、 at
B: B、 of
C: C、 on
D: D、 in
A: A、 at
B: B、 of
C: C、 on
D: D、 in
举一反三
- Stop talking and concentrate _________ your work. A: on B: in C: at
- Stop talking and concentrate<br/>_________<br/>your work. A: in B: for C: on D: at
- During the office hours, you should focus your mind on your work. A: concentrate on B: complete C: remind D: pay for
- Complete the following sentences with proper prepositions or adverbs. I will try my best to do the business _____ hand. Stop talking and concentrate ____ your work. I' ve seen them playing the piano ____ several occasions. Aim for the best, prepare _____ the worst. The school and the parents have been ____ close contact.
- When you are sleeping _______ . A: all of you reflexes stop working B: most of your reflexes stop working C: many of your reflexes still work D: all of your reflexes still work