—Do you know what to do in the lab, Mike?
—Oh, sorry I don’t----just _____if I could get a ticket for the Shanghai Expo.
A. wonder B. wondered
C. wondering D. having wondered
While reading, you should not always ___________ a dictionary to find the meaning of each new word.
A. look up B. turn to C. look for D. turn out
After dry days, everyone appreciates ______ when there is a timely rain.
A. that B. one C. this D. it
—What about the picnic plan?
—Not ________ yet. It’s being discussed.
A. decided B. decide C. deciding D. to be decided
Look at the new computers, of ______ none are produced abroad.
A. them B. whom C. which D. these
Theory is based on practice and ________ serves practice.
A. in turn B. by and by
C. by chance D. in this case
