They aren't our books. Are they___________?
A. your B. yours C. them D. their
--- What ____ he_____ last weekend?
--- He went to a movie.
A. does; do B. did; go C. did; do D. does; go
This pencil is___ than that one.
A. as long B. longest C. long D. longer
You should study harder______ it is too late to catch up.
A. if B. when C. after D. before
Tell the boy the news. He is ______to understand it.
A. enough old B. enough young C. old enough D. young enough
Class is over. Let’s stop______ a rest.
A. having B. to have C. had D. have