问题

Is the math problem ______– Yes, I can work it out ______.
A:having
B:had
C:to have
D:has;
B:had
C:to have
D:has;
正确答案是:
同类题型
Only in this way _____ get rid of the bad habit-smoking. [ ]
_way,playing on people believing the myth
I’m not feeling ______.–You should see a doctor, then you’ll feel _____ soon.
To be honest, I would agree with Tom, though not _____
My cousin doesn’t know what to ______ at the university; he can’t make up his mind about his future.