________ of the city was covered with the heavy smog.
His mother is ______. Today is his mother’s thirtiethbirthday.A. thirteen B. thirty C. Thirtieth
—Let’s meet on Sunday. ______ ?—I want to meet you, but I am really busy.A. Is that right B. Is it right C. Is that OK with you
We sell all our clothes ______ very good prices.A. at B. in C. On
—How much is the hat? —It’s only nine dollars.—OK, I’ll ______it. —Here you are.A. take B. need C. Like
—What can you ______ at the door? —Let me have a ______.A. look; see B. see; look C. look; watch