nk that thisfilm is _______ a film, it is also a good material for education

TheShanghai World Expo ________ a large number of tourists from abroad. [ ]

The historicimpression on us．Every one of us thought their show was _________ a failure but a great success.

It’s hard for me to fall asleep at night. Could you offer me some advice—______. Tell me all about it and I’ll do what I can.

下列各句中，表达得体的一句是 （ ）