(2013·湖南，34)—I don't understand why you didn't go to the lecture yesterday afternoon.—I'm so sorry.But I________my homework.
#99735
A
had done
B
was doing
C
would do
D
am doing
推荐题目
The past two years ________ a sharp rise in oil price, which adds to the burden of auto transportation industry.
#101865
A
witnessed
B
has witnessed
C
is witnessing
D
witnesses
Some of the government officials are not doing their jobs well since some of the questions from the ordinary people never get .
#102549
A
to answer
B
answering
C
answered
D
to be answered
I _______ online games for two years, but I’ve never regretted giving it up.
#100083
A
play
B
was playing
C
played
D
had played
— Marx looks nervous.— So____________you if you had so fierce a competition.
#103302
A
do
B
did
C
will
D
would
Overuse of computers largely to the failure of his eyesight，which is also a warning message for us all．
#101174
A
contributes
B
turns
C
devotes
D
adjusted