题目内容
I am afraid he has some difficulty the chemistry problem.
A. to work on B. to work out
C. in working on D. in working out
练习册系列答案
相关题目
1.( )
| A. | same | B. | amazing | C. | afraid | D. | path |
2.Tom is considering __________ his job because he ____________ getting up so early.( )
| A. | changing,isn't used to | B. | not changing,doesn't use to | ||
| C. | not to change,didn't use to | D. | to change,isn't used to |
8.( )
| A. | live | B. | mile | C. | quite | D. | knife |