— Bruce, I am still not sure ________.
— Why not? No one is better than you in our class.
A. where I can apply for the competition
B. how can I prepare for the competition
C. whether I should take part in the competition
D. who I can ask for information about the competition
— 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
