When he moved to Canada, his children __________ the change very well.

The girl was not very happy,so she had to give us a _____ smile.[ ]

Perhaps John’s not in —–_______ Look, the light’s on

What field will your son go into after graduation from Nanjing University?— I’m not quite certain, but he ________ a good teacher of English.[ ]

There are some warnings in some countries ______ over exploitation of underground water has caused the decline of wetland and increase of desertification.