The policeman came up to the house, whose door was open, _____ there for a while, and went in.
| A．to stand | B．standing | C．stood | D．stand |
_____ deep down in the earth, the dead forests rotted away and became coal.
| A．Buried | B．Burying | C．To bury | D．Being buried |
Only when class began _______that he had left his book at home.
| A．will he realize | B．he did realize | C．did he realize | D．should he realize |
—I have to get to the post office by six o’clock, but it is almost six now．
—This clock is fifteen minutes fast．
| A．That’s too bad | B．Sounds good | C．Sure, you can | D．Take it easy |
Information has been put forward that more middle school graduates will be to universities．
| A．admitted | B．accepted | C．permitted | D．allowed |
There is not much time left, so I’ll tell you about it．
| A．in detail | B．in brief | C．in general | D．in all |