–What did you buy during your last trip?
-__________ .I lost all my money.

We can get _______ touch with David on the Internet.
A. in       B. on       C. to

____ the help of man-made satellites卫星, we can know what the weather will be like in the future few days.

Don’t you think ___ important to care for our earth?

Don’t drive so fast please. There is _________traffic at this time of the day.

People often go to the     to eat dinner.
A. restaurant
B. post office
C. museum

The two old men ______ each other since 1970.

Shanghai is bigger than ___________ in Japan.

--- Is Lucy knocking at the door?
--- No. It ______ be Lucy. She is in America now.

Jack, _______ eat in class. It is not polite.