— The floor is dirty.— Yes. It _______ for two days.
#99920
A
hasn’t swept
B
didn’t sweep
C
hasn’t cleaned
D
hasn’t been cleaned
推荐题目
Whatever they end up doing, they      __themselves a great deal.
#102595
A
will be teaching
B
will have taught
C
are teaching
D
will be taught
---Why, Emily, you look so energetic! ---Well, I ______ in the gym for a slim figure so far.
#101434
A
am working out
B
had been working out
C
worked out
D
have been working out