(   ) 13. That bag isn’t mine. It may be __________.

A. somebody’s  B. somebody else  C. somebody’s else  D. somebody else’s

(   ) 14. They have been skating __________.

A. for three hours ago      B. since three hours ago

C. three hours ago         D. since three hours

(   ) 15. _______, what’s your hobby?

A. In the way  B. On the way   C. To your way   D. By the way

(  ) 16. Once upon a time, an old man tried ______ the mountains.

A not move    B not to move    C moving    D to move

(  ) 17. Zhang Lan is ill. Let me go to the meeting instead ________.

A of she    B of her    C off she    D off her

(  ) 18. When I walked past the park, I saw some old people ______ Chinese Taiji.

A do    B did    C doing    D are doing

(  ) 19. I’ll phone you as soon as I ______.

A get to home    B got to home    C get home    D got home

(  ) 20. You can’t cross the street now. You have to wait _____ the traffic lights turn green.

A when    B after    C until    D while

(  )21. Wukong can make 72 changes ______ his shape and size.

A in     B on     C to     D at

(  )22. The writer’s new book will ______ next month.

A come in     B come on     C come out     D come into

(  )23. Some parents make their children _____ chores at home.

A to do     B do     C doing     D does

(  )24. We couldn’t help _____ when we heard the funny story.

A laugh    B laughing    C laughs    D to laugh

(  )25. When water is heated, it will turn _____ water vapor (水蒸气).

A into     B on     C in     D to