—What did Bob ask you just now?—He wanted to know how long________when he reached the cinema.A.the film had startedB.the film will startC.the film had been on
—_____ you please play tennis with me? —Sorry, I _____.
Smoking is bad for your health. You should.
Aron water five days later.
This is______difficult problem that few students can work it out.
.He lives_______in the______village, but he is never_______.