39. My sister was given a smartphone on her birthday

40. It is very exciting to read book

41. If it was nice, we could go for a picnic

42. It was so hot for us to go swimming yesterday

43. They wish they didn't have to work so hard everyday

44. He works hard so as to pass the entrance exam next week 

45. Would you mind not playing music so loudly?

46. Nam asked me when the film started

47. This pool is not shallow enough for the children to swim in

48. The house which was built in 10 years ago is old

49. I haven't met her for years

39. My sister was given a smartphone on her birthday

Câu BD thì QKD

40. It is very exciting to read book

It's +adj+to+V

41. If it were nice, we would go for a picnic

Câu đk loại 2

42. It was so hot for us to go swimming yesterday

43. They wish they didn't have to work so hard everyday

Đây là câu ước 

44. He works hard so as to pass the entrance exam next week 

So as to+ V+ O

45. Would you mind not playing music so loudly?

Would you mìn+ (not)+ Ving

46. Nam asked me when the film started

Câu trực tiếp gián tiếp

47. This pool is not shallow enough for the children to swim in

N+tobe+adj+enough+for+O+to+V 

48. The house which was built  10 years ago is old

49. I haven't met her for years

Câu thì HTHT