— Susan, would you like to go hiking with us this afternoon?— I'd love to, but I study for a test.A. may B. have to C. can
All the visitors live on floor.A. two B. second C. the second
There is big supermarket in center of our city.A. a; the B. the; a C. the; the
Which of the following is caused by the earth’s turning around the sun?
—Is he still raising money for charity?—Yes. He never hope of helping poor children.
—Peter shut his mouth at the meeting all the time. How about Tom?—.