______, he still cannot make himself understood.
| A．So clearly he speaks English | B．So clearly does he speak English |
| C．Clearly as he speaks English | D．As he speaks English clearly |
The number of private cars in urban areas should be limited ___________the number of public buses should be increased.
| A．when | B．while | C．unless | D．until |
the teacher us, we can make great progress.
| A．With; to lead | B．With; lead | C．As; lead | D．As; leading |
The young man tried to live by writing, but it didn’t provide a good enough ___________.
| A．money | B．value | C．bill | D．income |
China is a _____ country _____ to the third world.
| A．developed; belongs | B．developing; belonging |
| C．developing; belonged | D．developed; belonged |
It is _______ pleasant surprise to learn that Mary is ______ great success as a writer.
| A．a; a | B．/; / | C．a; / | D．/; a |