I shall remember the days __ we worked together.
| A．when | B．which | C．that | D．of which |
The computer system____ suddenly while he was searching for information on the Internet.
| A．broke down | B．broke out | C．broke up | D．broke in |
–When can I come for the photos? I need them tomorrow afternoon.
-They ___be ready by 12:00
| A．can | B．should | C．might | D．need |
In our childhood, we were often ___by Grandma to pay attention to our table manners
A.demanded b reminded C. allowed D. hoped
20.______ that caused him to serve dinner an hour later than usual.
| A．It was we being late | B．It was our being late |
| C．It was we were too late | D．It was because we were late |
19 “Who are making so much noise in the garden?” “_______ the children.”
| A．It is | B．They are | C．That is | D．There are |