—What qualities does a person need to become an astronaut?—He ________be knowledgeable，independent and creative.
#62462
A
can
B
may
C
would
D
should
推荐题目
She is a quiet girl at school，but sometimes she _____ be very naughty.
#62791
A
should
B
would
C
can
D
will
—Must I hand in my homework now， Mr.Smith?—No，you ________.
#74206
A
can’t
B
shouldn’t
C
wouldn’t
D
needn’t
One ought ________ for what one hasn't done.
#62937
A
not to be punished
B
to not be puished
C
to not punish
D
not be punished
Sometimes smiles around the world ________ be false, hiding other feelings like anger, fear or worry.
#63470
A
must
B
can
C
should
D
would