I think English is __________ unimportant subject.— I don’t think so. It is __________ useful tool when we talk with foreigners.

What should I do first—Theinstructions that you should mixflour with water carefully first

So clearly ______ that I was able to understand much of what he said. [ ]

You bought the car about ten years ago—Yes. _______ it’s old, it still runs well.

Every book ______ from the library should be returned on time．