The headmaster called on us to ______old toys to the homeless children.

The moment I saw her, I ______ her, although she changed a lot through years. 

In some cities it is very difficult to have a telephone _____ , and people have to wait a long time before they can get a phone.

Jenny nearly missed the flight＿＿doing too much shopping.

Tom wants to know if we can ____ John for the night, since he has lost all his money and can go nowhere.