I took the medicine but it didn't have any ___.
| A．answer | B．cause | C．work | D．effect |
John plays football________， if not better than, David.
| A．as well |
| B．as well as |
| C．so well |
| D．so well as |
从题中所给的A、B、C、D四个选项中选出一个最佳答案。
You can't come in without a________.
A．permission
B．permit
C．being permitted
D．permitted
You are not________to drive after drinking.
| A．agreed |
| B．permitted |
| C．offered |
| D．hoped |
I can lend you the book________that you can return it to me on time.
| A．if |
| B．unless |
| C．provided |
| D．so |
You should know the traffic rule now, for you have had me________so many times.
| A．explained |
| B．to explain |
| C．explaining |
| D．explain |