42. How much do these trousers cost?
→ What
43. Why don't we go swimming this afternoon?
→ What about
44. The weather was bad, so we decide to stay at home and watch TV.
> Because
45. No one in my class is as intelligent as Huy.
> Huy is
D nha vì smail là nhỏ còn big là to
C. Study
A nha vì CN là số ít nên dùng does