--- Has your friend completed his design?
---Not yet.. he ______ on it last night..
A. worked B. has worked
C. is working D. was working
If he has_______, he will_______ his research.
A. time enough; carry on out
B. enough time; carry on with
C. enough time; carry with on
D. time enough; carry with
---When did you go to bed last night?
---_______.
A. Until 11o,clock
B. Since my mother came back
C. Until I finished my homework
D. Not until my mother came back.
By _______ local doctors and nurses, we hope_______ more patients.
A. train; help B. training; to help
C. training; helping D. train; helping
It’s generous _____them to give food and clothes to homeless people.
A. as B. for C. to D. of
---Look, what have you done?
---Sorry. I think if I _____another chance, I’ll do it better.
A. give B. will be given
C. am given D. will give
