(2013·安徽高考)It ________ be the vocabulary that caused you the problem in the exercise because you know a lot of words.
#62392
A
may
B
couldn't
C
should
D
needn't
推荐题目
He would rather ________for himself than________for a meal.
#77321
A
cook;going out
B
to cook;go out
C
cook;go out
D
cooking;going out
The plant is dead. I ____ it  more water. 
#63233
A
will give
B
would have given
C
must give
D
should have given