[单项选择]Scientists think ______ helps some trees to conserve water in winter.
A. when losing leaves
B. leaves are lost
C. that losing leaves
D. the leaves losing

[单项选择]Why do some people think hemp is better than trees for paper industry
A. It is cheaper to grow hemp than to cut down trees.
B. More paper can be produced from the same area of land.
C. Hemp planting can beautify the environment.
D. Hemp can produce paper of high quality.

[单项选择]Embarrassed, I nodded, trying to think of some way to ______ my error.
A. make do with
B. make up for
C. go in for
D. go along with

[单项选择]Some people think that animal research is irrelevant ______ our health and that it can often produce misleading results.
A. with
B. at
C. on
D. to

[单项选择]Some people think the railways are unnecessary because
A. planes and motorcars have taken the place of trains
B. oil is expensive today
C. trains are superfast
D. railways gain a large amount of money

[单项选择]There are some trees on ______ side (s) of the street.

[单项选择]A: Do you think you could lend me some of your recordsB: Until whenA: Oh, just over the holidays.B: I'm not sure. ______

[单项选择]Some scientists think there may have been life on the Mars in the past because ______.
A. there is no life there now
B. there is a large amount of water at the poles
C. the Mars may be able to support life in the future
D. conditions may have been similar to those on the Earth

[单项选择]Some people think （） about their rights than they do about their responsibilities.
A. so much
B. too much
C. much more
D. much too

[单项选择]

Some people think they have an answer to the troubles of automobile crowding and dirty air in large cities. Their answer is the bicycle, or" bike". In a great many cities, hundreds of people ride bicycles to work every day. In New York City, some bike riders have even formed a group called Bike for a Better City. They claim that if more people rode bi- cycles to work there would be fewer automobiles in the downtown section of the city and therefore less dirty air from car engines. For several years this group has been trying to get the city government to help bike riders. For example, they want the city to draw bicycle lanes on some of the main streets, because when bike riders must use the same lanes as cars, there are accidents. Bike for a Better City feels that if there were special lanes more people would use bikes. But no bicycle lanes have been drawn. Not everyone thinks it is agood idea--they say it will slow traffic. Some store owners on the main streets say tha
A. are more convenient than cars
B. are safer traffic tools than cars
C. are ridden by most people inU．S．
D. are the solution to some city problems

[单项选择]Some of us find it difficult to think in imaginative and flexible ways because ofour _______ pattern of approaching problems.
A. set
B. common
C. popular
D. hard

[单项选择]Some people think that a translation, or word-foreword _______ translation, is easier than a free translation.
A. literal
B. literary
C. liberal
D. linear