--- What about yesterday’s homework, Amy?--- I found ____ hard to finish all the exercises.
#55921
A
it
B
it’s
C
that
D
that’s
推荐题目
_____a cat.  We do not know_____ name.      
#55860
A
It is, its
B
Its, it is
C
It is, It is
D
It is, is
Is this your father? No, ________. 
#55854
A
it is
B
it isn’t
C
he is
D
he isn’t