Question III. Put each verb in brackets into an appropriate form. Write the answers on your answer sheet. (6 points)
31. Someone ..................(knock) at the door. Can you open it?
32. ....................(not talk) in class when the teachers are explaining the lessons.
33.Why you always ..................(forget) your pens?
34. It's a pity that she ........................(not understand) what I am saying at the moment.
35. I (do) ………………………. the housework when I come home.
36. It’s very wonderful for us (enjoy) ………………………. the peaceful life in the country.
37. Do you smell something (burn) ……………………….in the kitchen?
38. You’d better (not go) ……………………….out late at night.
GIẢI THÍCH