-Do you know how many counties_______ during his journey to Europe last month?
-Quite a few. He was warmly welcomed by the countries' leaders.
| A．did President Xi visit | B．President Xi visited |
| C．has President Xi visited | D．President Xi has visited |
Peter will take part in the boys’_____ tomorrow.
A.800-meter race
B. 800-meter races
C. 800- meter- races
— What should we do to prevent the flu?
—We should keep our rooms_____ and the air fresh all the time.
A. cleaning B. cleaned C. clean
— When did your school hold the sports meet?
—Last week. And I _______ the high jump.
A. joined B. took part in C. will join
— Must we go to see a doctor at once when we have the flu?
—No,_____.
A. we mustn’t
B. we shouldn’t
C. we don’t have to
There____ a baseball game between Class Two and Class Three tomorrow.
A. will have
B. is going to be
C. are going to be