They talked for about an hour of things and persons _____ they remembered in the school.
A. which B. that C. who D. whom
Don’t be in a hurry. We are supposed ____________ this problem step by step.
A. solving B. to solving C. to solve D. solve
_________you have a rich knowledge of Chinese history, try acting as a guide for these foreign visitors.
A. Unless B. Though C. Now that D. Ever since
The school ______ my sister studies at is far from here.
A. where B. that C. at which D. in which
You will succeed in the end _____________ you give up halfway.
A. if B. unless C. now that D. Until
I couldn’t do my homework with all that noise ___________ outside.
A. going on B. goes on C. went on D. to go on
