It is very kind _____ you to help me with my lessons because it is very difficult _____me to learn them well.
#50539
A
of; for
B
of; of
C
for;of
D
for; for
推荐题目
There are some apples ___ the tree. 
#50993
A
on
B
in
C
of
D
to
      all the students in his class,Xiao Ming writes      .
#48681
A
Of;very carefully
B
In;the most carefully
C
Of;most carefully
D
In;much more carefully
We have socks ___all colors ___only $5 .
#46778
A
at ; in
B
in ; for
C
at ; at
D
for; at