You don't need to introduce her. I ______ her several times this year.
A. had met
B. have met
C. met
D. meet
The experiment is well worth ______ again.
A. trying
B. being tried
C. to try
D. to be tried
We learn in geography that the valley surrounding the Yangtze River is one of ______ fertile in China.
A. the most
B. the more
C. most
D. a most
If he ______ the job today, he will be able to leave for Shanghai tomorrow.
A. finish
B. will finish
C. finishes
D. shall