---Excuse me. You shouldn’t smoke here. Look at the sign “NO SMOKING HERE”.--Sorry, I ________ it just now.
#101564
A
doesn’t see
B
haven’t seen
C
didn’t see
D
hadn’t seen
推荐题目
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
This is the second time that you ______ the Summer Palace.
#100197
A
visited
B
have visited
C
had visited
D
are visiting
—Take this medicine three times a day，Tom!—Do I have to take it？It ________ so terrible.
#99741
A
is tasting
B
is tasted
C
tastes
D
has tasted
All the essays _____________, the teacher sent the students home.
#102948
A
having written and collected
B
having been written and collected
C
being written and collected
D
to be written and collected
I’ve finally finished my paper and it ＿＿＿＿＿ me an entire month.
#104645
A
takes
B
took
C
was taken
D
had taken