Mother:You don’t look happy,Cathy.__6__
Cathy:I didn’t do well in the chemistry test.
Mother:Really?I could hardly believe you were not doing well in chemistry.__7__What happened this time?
Cathy:__8__I found all the questions easy and I finished the test in no time.
Mother:Yes.It is one of your weaknesses.
Cathy:Yes.__9__I made some very stupid mistakes that I shouldn’t have made.
Mother:__10__
Cathy:Yes,I have certainly learned a lesson.
A.I know you are very good at chemistry.
B.What’s wrong?
C.I was too careless.
D.I feel angry at it.
E.You are right.
F.Well,next time you should be more careful
G.I don’t know.