—Did you stay up late last night?
—Not very late. It was half past eleven I went to bed.
| A．that | B．when | C．before | D．since |
A team of nurses ________ the doctor in performing the operation on the boy wounded in the earthquake.
| A．supported | B．encouraged | C．assisted | D．respected |
---What on earth are the police busy with?
---They have been looking into how the plane crash _______.
| A．came out | B．came up | C．came down | D．came about |
Each country, of course, in _______ Copenhagen has its own particular priorities and concerns, which is why ________ agreement is so difficult to reach.
| A．the; an | B．/; an | C．a; the | D．/; the |
I’m sorry to tell you that we will not tell you the results of the survey until we have looked through all the _______.
| A．directions | B．instructions | C．data | D．standards |
The ground is wet all over, so I’m sure it must have rained last night, ________?
| A．wasn’t it | B．didn’t it | C．isn’t it | D．doesn’t it |