David talked with a friend of ____ on the Internet for a long time yesterday.

Will you come to the dinner party?— I won’t come unless Jenny____.

I don’t like sports, but I like to _______ NBA games on TV.

Is that Henry? —-No. He here. He has gone to Australia.

What’s wrong with you, Eric? You look tired.— I ________ to prepare for the final exam last night.