________ Tom ________ Mary speaks good Chinese, so they can communicate with these Chinese students very well.
________I was in the US,I made a lot of American friends.
—I don’t know________.—Because he has to look after his mother.
She________to an English program while her parents________TV.
—I didn’t see you at the beginning of the party last night.—I________on nay biology report at that time.
The girl was flying a kite________her father came back.