Swimming alone ____ be ____ dangerous. Do be careful.
#89464
A
need, highly
B
may, high
C
can; highly
D
can; high
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---Hi, Lucy．Have you heard of any good news about Frank recently? ---Yeah．She ____ have done better．She has been admitted to one of the top-ten universities in the States．
#87911
A
shouldn’t
B
wouldn’t
C
needn’t
D
couldn’t
---Where is my reference book? It was here a moment ago.---Someone ___ it by mistake.
#89050
A
could have taken
B
must take
C
might take
D
must have taken
—Mum, I’ve been studying English since 8 o’clock. ____ I go out and play with Tom for a while?—No, I’m afraid not. Besides, it’s raining outside now.
#90058
A
Can’t
B
Wouldn’t
C
May not
D
Won’t
He _____ without saying good-bye to them, for he always has good manners.
#90153
A
mustn’t have left
B
may not leave
C
shouldn’t have left
D
can’t have left
She got stuck in a traffic jam on the way, or she dinner with us now．
#86795
A
would be having
B
was having
C
is having
D
will be having