I like sleeping with the window open ______ it’s too cold.
A . if B. when C. until D. unless
When the teacher came in, the students stopped _______ and became very ________.
A. to talk, quiet B. talking, quiet C. to talk, quietly D. talking, quietly
—Do you believe that paper is made _____wood ?
—Yes, I do . And you can see that books are made _____paper.
A. from , from B. from , of C. of ,from D. of ,of
—How much ____the pair of trousers ?
—Sixty dollars _____enough .
A. is, is B. is, are C. are, is D. are, are
He is often made _____ for twelve hours a day by his boss.
A. work B. working C. to work D. to be working
—What a hot day!
—The weather report says it will be even tomorrow.
A. cooler B. hotter C. wetter D. colder
