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
--- _________ difference the day made! We were very happy.
A. what B. how C. what a D. how a
--- I didn’t bring back anything from America.
--- _________ at all? Why not?
A. Anything B. Nothing C. Something D. Everything
