问题

What ______ the noise, Bill?—Sorry, I broke my glass.
A:is
B:was
C:has been
D:will be
B:was
C:has been
D:will be
正确答案是:
同类题型
Good health depends ________ good food. [ ]
How clean the window is ! —–Yes ! It _______ just now .
Please get the information about zebras as ______ as possible.
The shopkeeper gives every visitor _________ up-to-date magazine to introduce their new goods.
How long have you been a League member?—_____two years ago.[ ]