题目内容
4. 我可以参加这个讨论吗？.
May I the discussion?
4. join in
3. In the future , humansmore secrets of nature.
22. 你为什么不学会独自处理这个问题？
Why don't you learn?
8. Mary paid about $ 1,500 for a trip to Europe with her mother.(对画线部分提问)
did Mary pay for a trip to Europe with her mother?
25. Amy studied in a university for several years.(对画线部分提问)
did Amy study in a university?
33. It’s about 2 kilometers from my home to school.(对画线部分提问)
is it from your home to school?
9. —How do you usually go to work?
—I usually go to work by bus. But sometimes I (开车去上班) .
38. 我爸爸每天骑自行车上班。
My father goes to work every day.
() 4. the dog play with the ball is very interesting.
A. Watches B. Watching
C. Watch D. Watched
