He’s gone to the library ,_______ he ?
| A．isn’t | B．doesn’t | C．hasn’t | D．wasn’t |
— Don’t be late next time!
—______.
A. Sorry, I won’t
B. Sorry, I don’t
C. Not at all
— _____ do you go swimming with your father, Jane?
—About once a week.
A. How long B. How many times C. How often
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