— Our classroom every day．
— So it is. It is our duty to keep it clean and tidy.
| A．cleans | B．is cleaning |
| C．is cleaned | D．was cleaned |
The table is ____ wood and paper is ______ wood ,too.
A. made from, made of
B. made of , made from
C. made of , made into
—will you come back, Jack?
—In 3 weeks.
A. How soon B. How long C. What time
Let’s move the heavy bag, ________?
A. will you B. do you C. shall we
She stayed at home , but she didn’t feel .
A. alone; lonely
B. lonely; alone
C. alone; alone
When did Hong Kong return to our motherland? ________ July 1st ,1997.
A. On B. At C. In