I usually don’t have _____ supper, but I always eat ______ big breakfast.
| A．a, the | B．a, a | C．不填, a | D．不填, 不填 |
many times, but he still didn’t understand it.
| A．Having been told | B．Though he was told |
| C．To have been told | D．He was told |
That was a very busy street that I was never allowed to cross accompanied by an adult.
| A．when | B．if | C．unless | D．where |
---Mary was asked to do something important.
---It doesn’t matter. Let’s the work where it is left off.
| A．take up | B．take down | C．take in | D．take off |
―Which of the two poems do you like better?
―____ shorter one, of course. I think it’s really ____ most interesting one.
| A．The; a | B．A; the | C．The; the | D．A; a |
The government should develop system to predict when wildfires occur and
give warnings in time.
| A．previous | B．reliable | C．reasonable | D．responsible |