____ for a long time, but he managed to catch up with his classmates at last.
A. Having been ill B. Being ill C. He was ill D. Though ill
We mustn’t waste anything; ______, we mustn’t waste our time.
A. after all B. in all C. above all D. at all
— Look, it _____ be Jack who is at the gate of the library.
— It _____ be him. He has gone abroad.
A. may; must B. must; mayn’t C. must; can’t D. can; mayn’t
She knows a lot about the film. She must have seen it before, ______ ?
A. must she B. mustn’t she C. has she D. hasn’t she
Every morning she has to ______ her little daughter, then takes her to catch the early bus in a hurry.
A. wear B. dress C. have on D. put on
I don't think the watch will ______ much. It is ______ $30 at most.
A. cost, worth B. worth, cost C. spend, worth D. worth, spend