If you ________ home without a word, your parents wouldn't be so worried now.
#86490
A
didn't leave
B
couldn't have left
C
hadn't left
D
shouldn't leave
推荐题目
So far no life has been found outside the earth, but while some scientists are actively searching for living things in outer space, others firmly believe there ____ .
#88293
A
mustn’t be
B
may not be
C
can’t be
D
won’t be
Generally speaking, my grandmother is nice and kind, but she _______ be very stubborn at times.
#87590
A
should
B
shall
C
must
D
can
(2013·东北三校4月二次联考)No matter how healthy you ________ be, you need to consult a doctor from time to time.
#86586
A
should
B
will
C
must
D
may