I won’t call you, ________ something unexpected happens.
| A．because | B．whether | C．unless | D．while |
It was proved that drunkdriving was________for the death of five people in Nanjing.
| A．to blame | B．blamed |
| C．being blamed | D．blaming |
—____?
—Yeah, it seemed a little confusing to me at first, but now I get it.
| A．Can you give me a moment | B．See what I mean |
| C．Are you stuck | D．Can you go on. |
When Alice came to, she did not know how long shethere.
| A．had been laying | B．has been lying | C．was laying | D．had been lying |
It rained heavily in the south, serious flooding in several provinces.\
| A．caused | B．having caused | C．causing | D．to cause |
Wehave bought so much food now that Tom won’t be with us for dinner.
| A．may not | B．needn’t | C．can’t | D．mustn’t |