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
I __________ a gift yesterday, but I didn't ________ it.
#59170
A
received, accept
B
received, accepted
C
accepted, receive
D
accepted, accept
Our teacher often tells us ____ the windows before we leave. 
#56359
A
close
B
closed
C
to close
D
closing
I hope _____on time.
#58243
A
her to come
B
she can come
C
she can comes
D
her comes
Most boys _________ guns to dolls while most girls _________ have dolls than guns.
#62728
A
would rather; prefer
B
prefer; prefer
C
would rather; would rather
D
prefer; would rather
You’ve given me so much help. I really _______ it.
#63690
A
appreciate
B
receive
C
suppose
D
regard