You look quite tired. You’d better _____a good rest.
A．stop to have B．stop having C．to stop to have D．to stop having
—How long have you _____the novel?
—Three days.
A．kept B．borrow C．been D．bought
—Listen！Helen is singing in the next room.
—It _____be Helen .She has gone to Beijing.
A．should B．mustn’t C．may D．can’t
Some people won’t realize the importance of their health _____they have lost it.
A．after B．when C．until D．as
China has _____ area of about 9,600,000 square kilometers, including Diaoyu Island(钓鱼岛) .
A．a B．an C．the D．/
Mr Green has lived in China _______ two years ago.
A．before B．after C．for D．since
