tìm và sửa lỗi sai
46. She wanted to know where had I bought that hat.
A.wanted to B.where had i C. that D. hat
47. If you haven't found your car key, what would you have done?
A.if B.havent found C.what would D. have done
48. I believable her, so I can tell her anything that she wants to know.
A. believable B.so I C that D to know
49. This is a valuable book. You must look after it carefully and you needn't lose it.
A . a B.must look C.carefully D needn't lose
50. Remember to take on your shoes when you are in a Japanese house.
A.Remember B on C. are D. a