—Perhaps John's not in.—______.Look，the light's on.
#89430
A
Yes，he can be at home
B
No，he couldn't go out
C
Yes，he must be at home
D
No，he needn't go out
推荐题目
________ stop advertising, prices would be greatly reduced.
#89209
A
Were they to
B
Could they
C
If they
D
Would they
-- Isn’t that Ann’s husband over there?-- No, it ________ be him. I’m sure he doesn’t wear glasses.
#87249
A
can’t
B
must not
C
won’t
D
may not
— You ought to have called her yesterday . — Yes , I know I ____ .
#89767
A
ought to
B
ought go have
C
ought have done
D
ought to have called
What a pity! I ______in Hainan two more days，but something urgent needed to be dealt with back home.
#89437
A
must have stayed
B
needn't have stayed
C
may have stayed
D
could have stayed
—Where on earth have they gone?—I have no idea, but I wish I .
#87732
A
know
B
knew
C
would know
D
would have known