21. It’s time______.
A. to go home. B. to go to home. C. going home. D. going to home.
22. There is______ “u” and ______“r” in the word “umbrella”.
A. a, a B. a, an C. an, a D. an, an
23. Where Amy from ?
A. is ;come B. does ; come C. do ; come D. are ;come