Most students at school hope that they can ________activities that appeal to them after class instead of just doing their homework.
| A．apply for | B．participate in |
| C．stick to | D．focus on |
Only after Mary read her composition the second time__the spelling mistake
| A．did she notice |
| B．she noticed |
| C．does she notice |
| D．she has noticed |
Not until he retired from teaching three years ago___having a holiday abroad
| A．he had considered |
| B．had he considered |
| C．he considered |
| D．did he consider |
—Look at those clouds!
—Don’t worry.___it rains,we’ll still have a great time
| A．Even if |
| B．As though |
| C．In case |
| D．If only |
You can borrow my car___you promise not to drive too fast
| A．unless |
| B．even if |
| C．in case |
| D．as long as |
All the photographs in this book,___stated otherwise,date from the 1950s
| A．unless |
| B．until |
| C．once |
| D．if |