Nothing is so easy as ________ parents to raise theirexpectations of their children too high.

____________ Tom __________ Mary speaks good Chinese, so they can communicate with these Chinese students very well.

It is written clearly in the requirementsthat all passengers ______ check onto board 30 minutes before the plane takesoff.

_____ him and then try to copy what he does .

John did quite well in his exams, _____ how little he studied. [ ]