The lesson drawn from the coal mine accidents is that safety measures are so important that we _____ take them too seriously.
| A．can’t | B．should | C．mustn’t | D．shall |
---How’s your tour around the North Lake? Is it beautiful?
---It ________ be, but it is now heavily polluted.
| A．will | B．would | C．should | D．must |
I won’t call you, ________ something unexpected happens.
| A．unless | B．whether | C．because | D．while |
---The last one __________________ pays the meal.
---Agreed!
| A．arrived | B．arrives | C．to arrive | D．arriving |
---It’s a long time since I saw my sister.
---_______________ her this weekend?
| A．Why not visit | B．why not to visit |
| C．Why not visiting | D．Why don’t visit |
The manager suggested an earlier date ____________ the meeting.
| A．on | B．for | C．about | D．with |