---I’m sorry, but there is no smoking on this flight.---Oh, I _____that. Sorry, I won’t again.
#100228
A
don’t know
B
didn’t know
C
won’t know
D
haven’t known
推荐题目
A library with five thousand books ____________ to the nation as a gift.
#102535
A
have offered
B
are offered
C
has offered
D
is offered
Whenever Steve sang in the shower, his voice _______ throughout the house.
#100876
A
has rung
B
would ring
C
was ringing
D
had rung
Due to a terrible flu that ________ on, many students don’t show up to school today.
#102743
A
goes
B
was going
C
is going
D
has gone
Up to now, the program ______ thousands of children who would otherwise have died.
#102296
A
would save
B
saves
C
had saved
D
has saved
Excuse me. I I was blocking your way.
#100431
A
didn’t realize
B
don’t realize
C
haven’t realized
D
wasn’t realizing