The boys volunteer three hours _____ up the park near their school.
| A．cleaning | B．to clean |
| C．cleaned | D．with cleaning |
—Alison, can I borrow your book?
—Yes, here you are. But you must take care notit.
A、lose B、losing C、to lose
—Would you mind my sitting next to you?
—.
A、No, of course not
B、No, you can’t
C、Yes, please
Don’t talk loudly, your father.
A、was sleeping
B、has been sleeping
C、is sleeping
Mr. Brownfor twelve years in this school.
A、have been teaching
B、has been teaching
C、has be teaching
—will she stay here?
—For.
A、How soon, one hour and a half.
B、How long, one and a half hours.
C、How often, one hour and half.