When did your father ______ your mother — About 15 years ago.

____ the 1990s, the number of antelopes had fallen toabout 50,000.

Would you like some ________ to eat—Just a little, please.

With no one to________in such a frightening situation，she felt very helpless.[ ]

The secretary has a lot of things to ______ in the office since she has been away for quite a few days.