—Has Billy finished his homework today?—I have no idea.He        it this morning.
#104538
A
would do
B
was doing
C
has done
D
had done
推荐题目
 I________ an important conference at 10 o’clock this Sunday morning.
#100889
A
will have attended
B
will be attending
C
have been attending
D
have attended
Paul didn’t want to put on the coat. He said that he _________ by his friends.
#103498
A
will be laughed at
B
will be laughed
C
would be laughed at
D
would be laughed