6.A.In six years B.Six years ago C.For six years.
7.A.It doesn’t matter B.No, not at all C. Certianly
8.A.Neither have I B.So have I C.So you have.
9.A.Oh, have fun! B.I’d like to C.That sounds good.
10.A.Yes,he is very friendly B.Yes ,he’s not friendly C.No,he’s really friendly