my school ID card.
#76383
A
This’s
B
that’s
C
this is
D
That’s
推荐题目
—He should have come to join in the thorough cleaning.—He _____. I don’t think it was his turn.
#62891
A
needn’t have to
B
needn’t have
C
didn’t have to
D
doesn’t need to
I have trouble ________ the new words. 
#75119
A
memorize
B
to memorize
C
memorizing
D
memorized