There is _________ “s” at the end of _________word “has”.
| A．a ; a | B．an ;an |
| C．an ;the | D．a ,;the |
—Is it difficult for you to understand this passage?
—Yes, there aren’t any new words in it.
A.because B.though C.so
John is _______ clever boy that everyone likes him.
A. so B. such C. such a
—Why don’t you buy the computer?
—It costs too much. I can’t ________ it.
A. afford B. borrow C. sell
We can get _______ touch with David on the Internet.
A. in B. on C. to
— have you owned the house? — For five years.
A. How long
B. How much
C. How often