The maths problem is so difficult that none of them can          .
#57894
A
work out it
B
work it out
C
find out it
D
find it out
推荐题目
 —Was the suspect seen ________ that young woman in the street at that time? —Yes. The victim _________ a lot. 
#56994
A
hit, bled
B
to hit, blood   
C
hitting, bled  
D
hits, bleed
Don’t forget to take your bag when you ________ the bus.
#59802
A
get off
B
take off
C
turn off
D
put off