All Mrs Smith's efforts to tidy the room were _____ because her grandson soon made a mess of it again.
| A．at all costs | B．at random |
| C．in vain | D．in return |
The new coat looks too large on Mary，so her mother had to______.
| A．cut it out | B．cut it down | C．cut it off | D．cut it up |
The evening news comes on at 7 o’clock and ______only thirty minutes.
| A．keeps | B．continues | C．finishes | D．lasts |
—Shall we go to the market to get some apples？
—Look！It ______rain.Let’s make it another time.
| A．will | B．is going to | C．would | D．shall |
I cannot______ puzzled，for I simply cannot understand how I could have made such a stupid mistake.
| A．help feel | B．help but to feel | C．but to feel | D．but feel |
—What about the football match last night？
—______.I might as well have stayed at home and had a good rest.
| A．It couldn’t have been any better | B．It couldn’t have been any worse |
| C．It was the best one | D．There was no better one |