问题

It’s the fourth time that heavy smog has hit the city this month. — It’s high time we _______ measures tofight air pollution.

A:will take
B:took
C:totake
D:taking

正确答案是：

同类题型

Very loud noise＿＿＿＿＿make people ill or drive them mad.

We are worried about ____ they can be rescued

____ good use you’ve made of your time to study, there’s still room for improvement

It turned out to be a good harvest of wheat this year, ____ lack of rain[ ]

Suzhou is becoming these years.