－ ________ does the bridge made of steel weigh? －About 90,000 tons.
A. How much B. How long
C. How heavy D. How far
the end , my father asked me to teach French.
A. At, my B. At, himself C. In, his D. In, myself
The boss wants to keep his shop _______ for another three hours.
A. open B. opened C. opens D. opening
When he walks______my desk，he knocked my books and pens _____the floor．
A. passed；away B. past；away
C. passed；onto D. past；onto
Chinese students have weeks in the summertime than American students.
A. more; on B. fewer; on
C. more; off D. less; off
---Daniel , remember to close the door before leaving the house.---_________.
A.OK, I will B.Yes, please
C.It's hard to say . D.It doesn't matter
