—Hey, turn it off, please! We don’t music in the reading room. -- Oh, I’m sorry, sir. I won’t do it again.
Waste paper shouldn’t _____ everywhere. It’s our duty to keep our classroom clean. A. be thrown B. throw C. is thrown
– Whose notebook is this? -- It _____ Tom. I saw he used it just now. A. must belong to B. can’t belong to C. might be belonged to
– It _____ hard outside. You have to stay at home. A. rain B. is raining C. rained
– Physics _____ more difficult than Chinese, do you think so? -- Yes, I think so. A. is B. are C. has
My sister has practiced tennis for a long time. She plays tennis _____ you. A. as good as B. so well as C. as well as