_____ with the developed countries, some African countries are left far behind in terms of people’s living standards.

My mother asked me where _____ the key.

It’s high time we _____ strict measures to stop pollution.

There was no point （ ） about the working conditions; the manager would not listen to it any more.

The purpose of the conference is to （ ） the friendship among the Asian countries.

Many students thought about the third question for quite a while and had great difficulty answering it. Obviously， it was _____ all.

—Do you like pop music or country music? —（ ）. I only like sports.

There was nothing we could do _____ wait at that moment.

Alice speaks English well, （ ）?

The children looked up as the planes passed_____.

He （ ） by his sister at that moment.

Constant showers are characteristic （ ） the summer here.