ch them on the phone, we sent an email instead

Thanks to the measures ______ by the local government , the polluted river is becoming clearer andclearer and fish have begun to show up in it[ ]

May I smoke here?— No, you ______ . This is a no-smoking room.A．needn’t

Not until he left his home ______ to know how important the family was for him.

The weather in China is different from____.