What would you like for your birthday ? What aboutan MP5?—-Oh, to tell the truth, I ______ have an I-Pad thanan MP5.A．prefer

The police wondered________ of them is________ such atraffic accident

.—-Who are those people gathering infront of the building—–A group __________ itself the youthvolunteers.

It’s helpful to put students in a situation _______ they can learn how to cooperate with each other.

The social workers are busy ______on weekdays， but they still help us ______problems at weekends.