If you are not familiar ____ the topic, you may write something that is familiar ____ you.

In 1998,great floods __________ the southern states of China.

beautiful picture! I couldn’t believe it was painted by a young man.

the explosion, the roads are full of__________ peopleleaving the city.

.—Why not _______us and have a good time at the party —I would love to. ________ I have a lot of homework to do.