Yang Liwei is the first man ________ the moon.
| A．to step | B．step | C．stepping | D．steps |
---Your classroom report is so wonderful.
---I wrote for 3 hours ___________ I finished it.
| A．when | B．if | C．before | D．after |
The flight to Toronto was __________ because of the heavy snow.
| A．put off | B．put away | C．put up | D．put down |
The digital camera is so great. I’ve never seen a better one before, but the price of it is ______ in the store.
| A．higher | B．the most expensive | C．the highest | D．more expensive |
---You are great! Congratulations on winning the first prize!
---Thank you! Mr. Yu You__________ me to practice again and again every day.
| A．enjoyed | B．complained | C．encouraged . | D．celebrated |
If you are careful enough, you will _________ make mistakes in your exams.
| A．mainly | B．seldom | C．usually | D．probably |