--Are these your books?--Yes,
#35304
A
they're
B
they are
C
these are
D
these're
推荐题目
He found ______ very helpful to memorize the words of some popular English songs.
#35211
A
it
B
him
C
this
D
that
--Are these your books?--Yes,
He found ______ very helpful to memorize the words of some popular English songs.