--- What ________ useful book ! ---Yes, it is. But I found___________ difficult for me to read.
#53097
A
an, it was
B
a, it’s
C
an, it’s
D
a, it
推荐题目
. –Mary, is this ______ umbrella?--No, it’s not mine. It is _______.
#37352
A
you; hers
B
your; hers
C
yours ; her
D
your; her
