It is very kind ____ you to help me with my lessons. It is hard ____ me to learn them well.
#46694
A
of; for
B
of; of
C
for; of
D
for; for
推荐题目
―Where is the bank, please?―It is ____ the post office and the library.
#50856
A
next
B
at
C
between
D
in
