A friend is a person ______ you know very well and like very much.

A. who   B. which  C. whose

–Do you know ______?

--Yes. It’s a ball.

A. why she brought the box

B. what is in the box

C. how much the box is

It’s time ______ home now.

A. go  B. goes  C. to go

–I ______ know you can play the piano so well.

--Thank you.

A. didn’t   B. don’t C. can’t

These are my parents. They ______ workers.

A. am   B. are  C. is

A ______ tree is near the river

A. big  B. old  C. fat

—Shall we go ______ tomorrow, dad?

--Good idea.

A. swam  B. swimming  C. swim

–It is hot today, ______?

--Yes, it is.

A. aren’t they  B. don’t you  C. isn’t it

______ your article carefully, some mistakes can be avoided.

A. Check  B. If you check  C. Checking

--______ are you in?

--I am in Class One.

A. Which school  B. What class  C. Which grade