He knows little of mathematics, of chemistry.
It ______ be the postman at the door. It’s only six o’clock.
-------He says that my new car is a ____________ of money. -------Don’t you think those words are just sour grapes?
Even if you disagree with her, she’s worth ____.
Yesterday he called ____me ____my office and told me the good news.
He caught a bad cold. He ____on more clothes that day. A. should have put B should have putted C. had put D. was put