–Why, I couldn’t get you on the phone this morning.--We _____ tennis in the yard when you called.
E-mail, as well as telephones, ______ an important part in daily communication.
Professor Wang has written some short stories, but he is______ known for his plays.
The boy promised______ in the exam any more.
-----You don’t look______. Are you ill? -----No, I’m just_______ tired.
My parents don’t allow_____ time_____ nothing.