That volcano___________in 1970 after two hundred years of silence.

It is believed that the construction of a highway will ____ growth of the suburbs.[ ]

What are the students ________ about?— Whether Senior 3 students should join in the coming school sports meet. [ ]

The meeting ___________ because of the smog in Northern China last week.— Oh, it’s too bad! We should take action to improve the air quality.

We can’t complain that children are cheating in examinations ______ adults themselves have set such a bad role model for them to follow