Would you be so kind-----to do me a favour,please?

Would you be so kind-----to do me a favour,please?
A.as B.enongh C.of D.about
2.As people speed up in their lives they are not eating properly,exercising or seeing friends and family.This can----------all kinds of things,especially heart attacks
A.result from B.lie in C.make D.lead to
3.It looks like rain.It-----------go out and watch TV at home
A.is better not to B.had better not
C.isn't better to D.had no better

ADA
1.so as to句型
2.lead to=result in“导致”
3.it's better not to do sth.译为“最好不做某事”.had better do 一般人做主语