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 ______.
#87593
A
ustn’t be
B
ay not be
C
an’t be
D
on’t be
推荐题目
—Many people in England love to give advice on weather reporting.—Yes, but I think the weather office’s computers _____ be more accurate.
#90073
A
can
B
must
C
ought to
D
might
According to the school rules, no student _____go out of the school after eleven o’clock at night without the teacher’s permission.
#87570
A
will
B
must
C
may
D
shall
My father worked day and night. Otherwise, there ________ no one to support the family.
#87109
A
would be
B
must be
C
would have been
D
must have been
--- I hear you have written a novel. --- Yes, the book ______ come out in a month or so.
#89115
A
can
B
must
C
should
D
would
—What is an ideal team leader like?—He ______ be responsible, determined and creative．
#87556
A
can
B
may
C
would
D
should