Mr. Black asks the kids ________ in the river, because it’s too dangerous.

Some students can do very well in English exams, but sometimes they can understand what a native (本土的) speaker says.

What do you think of the report— It ________ what we heard yesterday.

We’re going to have a party for mothers on Mother’s Day.—______.May I join you

158. It is said in the book that ThomasEdison _____ the world leading inventor for about sixty years.