___ the clock structk twelve. I got home with my brother.
| A．As | B．While | C．When | D．Since |
____ for a bus, I was reading a magazine.
| A．While was waiting | B．While I waiting | C．While I am waiting | D．While waiting |
Knowing how long the test would last, the students who finished ____ back and waited until the end of the exam.
| A．settle | B．settled | C．settling | D．to settle |
The captain ordered the crew to throw ____ the side of the ship all heavy guns and even stores in order to raise the boat in the water.
| A．on | B．through | C．across | D．over |
---What do you think of the dinner in Mr Brown's?
---Oh, great! We have never had a better one. It's a dinner of twenty ____.
| A．drinks | B．people | C．tables | D．courses |