She says that she’ll have to close the shop ________ business improves.
| A．if | B．unless | C．after | D．when |
Mike ________at 8:30 for the meeting, but he didn’t turn up.
| A．should arrive | B．must arrive |
| C．must have arrived | D．should have arrived |
You’d better not play ________trick on Jack; it’s said hat he is deeply in ________debt.
| A．a; the | B．不填; the | C．不填; 不填 | D．a; 不填 |
A high-tech exhibition ________in the National Museum now. Let’s go and visit it.
| A．will be held | B．is being held | C．was held | D．has been held |
Luckily, only a few passengers aboard were ________ injured in the traffic accident.
| A．slightly | B．approximately | C．exactly | D．gradually |
What is your daughter doing now?
She is on the phone, ________with one of her schoolmates.
| A．to chat | B．chatting | C．chatted | D．being chatted |