— The floor is clean and dry now. Who _______?— Sorry, I don’t know.
#41742
A
mopped it up
B
has mopped it up
C
has mopped up it
D
mopped up it
推荐题目
He looks very tired because he           well last night.
#39894
A
didn’t sleep
B
hasn’t slept
C
slept
D
sleeps
It ___________ heavily when I left school yesterday.
#41974
A
was snowing
B
is snowing
C
snowed
D
is snowy
---Where is your father? ---He _______ to Shanghai. He has ever ______ there twice.
#42437
A
has gone, gone
B
has been, been
C
has gone, been
D
has been, gone
— May I speak to Mr Morgan?— Sorry. He______on the farm. 
#42136
A
works.
B
worked
C
is working
D
has worked