Have you ever practice ________ to foreigners— Oh, yes. It improves my ________ skills.

My brother never reads in dim light.–_____.

The building ________ will be used as ournew library.

A makes a lot of excuses inan attempt to make war on Iran , however, Its __________ purpose lies in theabundant oil there.

I wonder if I can learn English well.—______．All things are difficult before they are easy.