Mr Wu said he didn’t know much about computers, but he’d try and help us ________.
________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.