.
--- Are you going to stay overnight?
--- Not__________it’s really necessary.
| A．if | B．unless | C．until | D．since |
Between the two generations, it is often not their age, _________ their education that causes misunderstanding.
| A．like | B．as | C．or | D．but |
Does this meal cost $50? I __________ something far better than this!
| A．prefer | B．expect | C．suggest | D．suppose |
I smell something __________ in the kitchen. Can I call you back in a minute?
| A．burning | B．burnt | C．being burnt | D．to be burnt |
We all know that, __________, the situation will get worse.
| A．not if dealt carefully with | B．if not carefully dealt with |
| C．if dealt not carefully with | D．not if carefully dealt with |
---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 |