当别人向你借尺子时,你应该说: A. No, thanks.B. Sure, here you are.C. No, I don't.
Animals and plants live Earth. A. on B. on the C. in the
There are books in our library. A. many and manyB. more and more C. some and some
We should not cuttrees. A. off B. upC. down
The weather is gettingin August. A. more hot B. hoterC. hotter
Trees can keepcool. A. usB. weC. our