31. We ( celebrate, celebrates, celebrating ) Christmas every year.

30. Everyone ( enjoy, enjoys, enjoying ) a good meal.

29. I put ( in, on, off ) my shoes quickly as I was late.

28. There ( is, are, am ) seven days in a week.

27. Chris and Jean ( walk, walks, walking ) to school every morning.

26. I enjoy ( help, helps, helping ) Father when he washes his car.

25. "( When, Where, What ) are you coming to Singapore?" Jenny asked her pen-pal.

24. What ( a, an, the ) interesting comic book you have!

23. Be careful of ( the, a, an ) thorns on the stem.

22. There ( is, are, am ) food on the table.