Fill in the blank with the correct form of the word.
20. I ________marbles when I was young. (use to/ play)
21. Minh used to ________his homework late in the evening. (do)
22. Thanksgiving ________on the third Thursday of November. (hold)
23. They ________for the next train to come. (wait)
24. ________you ________play hide and seek when you were small? (use)
25. Children must ________(learn) about road safety before they ________ (allow) to ride a bike on the road.
26. The end of the film was so ________ (move).
27. I was ________to learn that the director of that gripping film has won the first prize. (interest)
28. We found the film’s plot ________. (shock)
29. The scenes was so ________that I closed my eyes. (frighten)