1.---a reply ,he decided to write again.

1.___a reply ,he decided to write again.
A Not receiving B Reaciving not C Not habing received D Having received
why?
2 what have we said ____her so unhappy?
a.makes b.to make c made d had made
why?
3.make yourself at home,是什么意思?
4.yesterday the meeting___,because she had to__her mother's.
a,was called for ,call up b.was delayed,call in
c,was put off,call on d.was called off,call at
这几个短语分别是什么意思?
5.our teachers made us__a lot of homework after school.
a. to do b. doing c do d. to have done
这是我的几道错题,谢谢帮忙!