—Please come to the party before five o’clock.
—Sorry, I ______. I’ll have to help mom cook first.
A. mustn’t B. needn’t C. can’t
_____ are necessary for everyone.
A. Cloth B. Clothes C. Clothing
How about the _____’s quality?
A. produce B. product C. production
They told ______ about their families.
A. the other B. with C. each other
May I speak to Lynn?--- ______ Lynn.
A. I am B. This is C. It was
Jenny keeps ______ my name?
A. forgetting B. to forget C. forget