---Did you listen to the lecture?
---Yes, I have never heard a ___________ one.
| A．more exciting | B．more excited | C．most exciting | D．most excited |
---Why do you look so upset?
---There are so many troublesome problems _____.
| A．remaining to be settled | B．remained settled |
| C．remaining to settle | D．remained to be settled |
The cancer risks ___________ smoking have been well documented.
| A．involved with | B．involving with |
| C．associating with | D．associated with |
They are purely __________ weapons, not designed for attacks.
| A．offensive | B．defensive |
| C．offence | D．defensible |
It's not by any means a brilliant salary but it's ________for our needs.
| A．adequate | B．abundant | C．accurate | D．attached |
There are strict limits on ____________ the country because a lot of social problem could arises and the country can’t take in a lot of new blind comers. .
| A．emigration ito | B．immigration into |
| C．emigration out of | D．emigration into |