-Do you have Betty's phone number?
-Yes. Otherwise, I ______able to reach her yesterday.
| A． |
hadn't been |
B． |
wouldn't have been |
C． |
weren't |
D． |
wouldn't be |
I toured the Great Wall，I was deeply impressed with the beautiful scenery．
| A．For the first time | B．At first |
| C．The first time | D．It was the first time |
He was about to leave the office for home _______someone knocked the door and asked for some help.
| A．until | B．while |
| C．as | D．when |
If you find yourself ______ no one will help you, please call me.
| A．which | B．when |
| C．where | D．what |
The government has taken some measures to solve the shortage of water, but it may be some time __ the situation improves.
| A．since | B．when. |
| C．unless. | D．before. |
— Why was it so noisy over there?
— The Twins were surrounded by their fans ____ they stepped out of the hall.
| A．until | B．the moment |
| C．in case | D．so that |