“Look at these tracks. It _______ be a wolf.” “Don’t be so sure. I think it _______ be a fox.”
#89541
A
must; could
B
may; might
C
need; must
D
could; need
推荐题目
If the island ________ a tourist attraction, last week's earthquake would have caused far more deaths.
#86494
A
remained
B
would remain
C
has remained
D
is to remain
They took the injured straight to the hospital, otherwise he .
#86512
A
would die
B
should have died
C
might die
D
might have died
They got two free tickets to Canada, otherwise they______ able to afford to go.
#90047
A
wouldn’t have been
B
mustn’t have been
C
wouldn’t be
D
hadn’t been
---Mr. Smith, ______ he have all these letters typed for you right away?---He ______. They should be ready by 10 o’clock this morning.
#87788
A
will; must
B
shall; has to
C
need; will
D
would; ought to
The policeman have fined me for speeding but finally，he let me go.
#87915
A
should
B
could
C
must
D
would