题目内容:
---_____you_____outtheproblem,Sam?
---Notyet,butI’m going to.
A.Did,work
B.Are,working
C.Have,worked
D.Will,work
参考答案:
---_____you_____outtheproblem,Sam?
---Notyet,butI’m going to.
A.Did,work
B.Are,working
C.Have,worked
D.Will,work