—Is this pen, Tim?
—No. It’s Mary’s.
| A．you | B．your | C．yours | D．yourself |
—I did badly in my English exam.
— .
A. Congratulations B. That’s great C. I’m sorry to hear that
I don’t know if Jack . If he , call me, please.
A. will come; will comes B. comes; come C. will come; comes
My father has a computer, but he doesn’t know to use it.
A. what B. how C. who
trees have been planted near here, so the air is very fresh.
A. Two hundreds B. Hundred of C. Hundreds of