36.i haven't seen Nam for 3 years-S+have/has+Ved/c3...for+1 khỏng thời gian
37.Carol told Peter not to make so much noise-câu gián tiếp trong câu yếu cầu mệnh lệnh
S+told/asked...sb+(not)+to+V
38.it's very importatnt to keep the environment clean-it is+adj/adv+toV
39.Mrs.Hoa suggested Nam turn off the lights before going out-S+suggest+(that)sb+to V
40.how about planning some trees around your house to get more fresh air?-how about+Ving
41.if it isn't rain tommorow,i will go camping with my friends-câu đk 1
42.if i met alien in outer space, i would invite them home to talk-câu đk2
