— Thanks a lot for offering ________ advice to me in my research.
— It was my great pleasure.
A. a number of B. a great deal of
C. quite a few D. a little bit
It’s reported that the case the police devoted themselves to ________ yesterday.
A. solve B. solving C. was solved D. solved
You had made a serious mistake. Luckily you corrected it ________ it got worse.
A. when B. after C. until D. before
The research group ________ 15 members has made great achievements in recent years.
A. made up of B. made of C. made from D. made by
The problem ________ to be more difficult than we had supposed.
A. came out B. worked out
C. turned out D. broke out
Jacky was sleeping when the rain began to beat heavily ________ the windows.
A. across B. through C. over D. against
