--- When did you go to bed last night?
--- I didn’t go to bed _______my father got home.
| A．while | B．after | C．when | D．until |
The math problem is too difficult ,I can’t__________ .
| A．work out it | B．work itout |
| C．work them out | D．put it out |
Many old men prefer __________ in a peaceful countryside.
| A．to live | B．living | C．live | D．lived |
Mary likes learing English,______ she doesn’t like learning math at all.
| A．and | B．or | C．but | D．so |
------I’m taking the driving test next Sunday.
------________!
| A．Good luck | B．With pleasure |
| C．Good work | D．Congratulations |
______ trees are cut down in the forests every year.
| A．Thousand | B．Thousands |
| C．Thousands of | D．Thousand of |