二、单项选择(共15小题,每小题1分,满分15分)
( )1. The problem was very hard and the child .
A. can work out it B. couldn’t work out it
C. couldn\'t work it out D. can work it out
( )2. His father is so fat too much food and little exercise.
( )1. The problem was very hard and the child .
A. can work out it B. couldn’t work out it
C. couldn\'t work it out D. can work it out
( )2. His father is so fat too much food and little exercise.