He is ill. I don’t know _______ he will come to school.
| A．how | B．weather | C．when | D．whether |
— Could you look after my dog for me while we're away? —.
A. Yes, please B. No, I'm not C. With pleasure
I don't know if sheto my birthday party tomorrow. If she, I'll be very happy.
A.
comes; comes B. will come; comes C. 
comes; will come
— Susan, would you like to go hiking with us this afternoon?
— I'd love to, but Istudy for a test.
A. may B. have to C. can
—What are you doing? —I'mthe key to the door.
A. finding out B. looking after C. looking for
Do you knowfrom Yiyang to Changsha?
A. how far it is B. how far is it C. how long is it