6.I did it myself yesterday.
7.好象对的.要么改成 ourself
8.with you
9.make yourself at home
10.who's that speaking
11.those
12.so good a book
13.the same
14.i hope not
15.so he did
16.so it is
17.everyone should do their best
18.no one
19.either 改为 both
20.either you or i am right
21.none of them
22.i don't like either.
23.we both like
24.we both have
25.all of us have to