— I don’t understand why you didn’t go to the lecture yesterday afternoon.—I’m so sorry. But I _________ my homework. 
#100590
A
had done
B
was doing
C
would do
D
am doing
推荐题目
You must do your homework now; you ________ computer games all the evening.
#101744
A
have been playing
B
are playing
C
play
D
played
The truck ran down the hill, and the driver _____, according to the local newspaper, to have been killed.
#101207
A
was reported
B
was reporting 
C
reported
D
had been reported
--- ______ Betty this morning? --- Not yet, but she is sure to be here before noon.
#104264
A
Have you seen
B
Will you see
C
Do you see
D
Did you see?