问题

I won’t tell thestudent the answer to the math problem until he onit for more than an hour.
A:has been working
B:will haveworked
C:will have been working
D:had worked
B:will haveworked
C:will have been working
D:had worked
正确答案是:
同类题型
If I speak this way, could you hear me clearly –__________
They ________ my ability to solve problems, but I have proved that they are all wrong.
The lucky dog missed _______by his teacher, though he had made a big mistake.
How do you like the book—________________
_______ I accept the gift or refuse it is none of your business