I'm not sure _______. [ ] A. you can hel
题型:选择题
问题:
I'm not sure _______. [ ]
A. you can help me with my Maths
B. if he is able to swim or not
C. how soon he will be back
D. how long does it take to finish the job
I'm not sure _______. [ ]
A. you can help me with my Maths
B. if he is able to swim or not
C. how soon he will be back
D. how long does it take to finish the job