21B (sửa was painted)
22.C (sửa : bỏ she)
23.D (sửa : isn't he)
24.D (sửa : in HCM city)
25.C (wouldn't buy)
26.B (tell you)
27.C (chỉ cảm xúc con người - excited)
28. B (cho đến khi)
29.C (bởi vì )
30.A (phát âm)
31. It is said that they bought this shop last year.
There are said to have bought this shop last year.
32. He asked me how much I thought it would cost.