简答题 A lot of natural resources in the mountain area are to (will) be exploited and used. ?

简答题 A friend of mine from high school is working in England now. ?

简答题 All that glitters is not gold.?

简答题 A good memory is a great help in learning a language. ?

简答题 Air pollution is more serious than water pollution.?

简答题 A teacher should have patience in his work. ?

简答题 About half of the fruit is ripe.?

简答题 A dog is always well-known as a clever and friendly animal.?