how many mistakes__did you make?you got only 55 marks

问题描述:

how many mistakes__did you make?you got only 55 marks
How many mistakes _ did you make?You got only 55 marks?
A.on the earth B.on earth C.certainly D.in earth

How many mistakes (B.on earth) did you make?You got only 55 marks.
你究竟写错了多少?只得了55分.
on earth,究竟,到底的意思.