问题

I don’t understand ______ such a silly question in class yesterday.
A:why did John ask
B:why John asked
C:why is John asking
D:why John asks
B:why John asked
C:why is John asking
D:why John asks
正确答案是:
同类题型
Will you stay for some more days? —Sorry, I_____. My mother called to ask me to go back at once.
My uncle’s house in the downtown area is much smaller than ours, but it is twice ______expensive.
Where is your manager?—Sorry, he is ____ for my company.[ ]
It was time to go home, Martin______his raincoat and went out