I’ d ______ you didn’t touch that, if you don’t mind. better happier rather further

On no account______ be removed from the library. reference books may may reference books can’t reference books reference books can

I haven’t decided which hotel______. to slay to stay at is to stay at is for staying

______, his work is of great value than mine. All things considered Considering all things Considered all things All things considering

Mr. Bush ______ gardening as his hobby shortly after he retired from the General Motor last year. took up took back took in took over

______ what the English food is like, they decided not to spend their holiday in England. Telling Having been told They have been told Being told

Please don’t stand in the kitchen door, you’ re ______. in a way by the way in no way in the way

The police set a______ to catch the thieves. plan device trap trick

Tony is very disappointed______the results of the exam. for toward on with

She listened carefully______ she might discover exactly what he wanted. so as that in case providing in order that

If you are worried______the problem, you should do something about it. with for on about

Sorry, officer. I______ at 80 miles but I didn’t see any sign in the area telling people how fast they can drive. should not drive shouldn’t have driven mustn’t drive can’t drive

It is not easy______ the answer to the difficult math problem. to figure out figuring out figure out being figured out

The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals,【56】this is largely because,【57】animals, we stand upright. This means that our noses are【58】to perceiving those smells which float through the air,【59】the majority of smells which stick to surfaces. In fact【60】, we are extremely sensitive to smells,【61】we do not generally realize it. Our noses are capable of【62】human smells even when these are【63】to far below one part in one million. Strangely, some people find that they can smell one type of flower but not another,【64】others are sensitive to the smells of both flowers. This may be because some people do not have the genes necessary to generate【65】smell receptors in the nose. These receptors are the cells which, sense smells and send【66】to the brain. However, it has been found that even people insensitive to a certain smell【67】can suddenly become sensitive to it when【68】to it often enough. The explanation for insensitivity to smell seems to be that brain finds it【69】to keep all smell receptors working all the time but can【70】new receptors if necessary. This may【71】explain why we are not usually sensitive to our own smells. We simply do not need to be. We are not【72】of the usual smell of our own house but we【73】new smells when we visit someone else’s. The brain finds it best to keep smell receptors【74】for unfamiliar and emergency signals【75】the smell of smoke, which might indicate the danger of fire.

Our students are free to study ______ interests them. that which whatever anything

His salary as a driver is much higher______. than a teacher than that of a teacher than of a teacher than those of a teacher

It was not until he arrived at the railway station______he realized he had forgotten his ticket. before since when that

Many a student______going to take part in CET—6 next month. is is to are are to

—Do you know our town at all?—No, this is the first time I______here. was have been came am coming

Finding a job in such a big company has always been______his widest dreams. under over above beyond

By the time you get to Shanghai, I______ for Chongqing. am leaving will leave shall have left had left