Class is beginning. Will you please get the blackboard      .
#103250
A
to clean
B
cleaning
C
cleaned
D
having cleaned
推荐题目
Though I was tired out that evening, I _____ from falling asleep by the great pain in my knee. 
#100941
A
was prevented
B
had prevented
C
has prevented
D
am prevented
-- If you _____ away our secret that day, the current situation _____ different.  -- Sorry, but _____ to do that. 
#100297
A
didn’t give; will be; didn’t mean
B
hadn’t given; would be; didn’t mean
C
hadn’t given; would have been; hadn’t meant
D
shouldn’t give; is; don’t mean