—Mark，you look so tired．
—Oh，I didn’t go to bed________it was 12 o’clock last night．
| A．unless |
| B．after |
| C．until |
| D．as |
The students were excited when they knew they ______ out for a spring out the next month.
| A．went | B．had gone |
| C．will go | D．would go |
In my opinion, Li Jianrou is one of ___________ skaters this year.
| A．luckiest | B．lucky |
| C．the luckiest | D．luckier |
________ Jeremy was hurt in the match, he didn’t give up and finished in ninth place.
| A．When | B．Although |
| C．Because | D．If |
__________ surprised he was to see his stolen bicycle again at the gate of the park.
| A．How | B．What |
| C．What a | D．What an |
Five-star hotels provide better services than some small hotels. You _______ even use free WIFI there.
| A．must | B．can |
| C．ought to | D．used to |