问题
______stopping polluting the earth______hope to live in a better environment．
A:Only to；we Call
B:Only to；can we
C:Only by；can we
D:Only by；we can
B:Only to；can we
C:Only by；can we
D:Only by；we can
正确答案是：
同类题型
The police are looking for a missing boy who is believed ______ a white pullover and blue jeans.
―It’s nice day ， isn’t it?―Yes，what fine weather！
When will he leave for Shanghai?—As soon as he _ his work.
He lives to Joy, and in the factory he workswith her as well.
Mr. Su _____ in Zhuyuan Middle School since 1998. He regards it his second home.