“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 Lu Xun were a contemporary writer, I can’t guarantee that he ________ laughed at by readers, as most young people don’t appreciate his writing style.
#87942
A
isn’t
B
is
C
wouldn’t be
D
would be
They urged that measures _______ immediately to protect the endangered animals.
#87884
A
should take
B
must be taken
C
would take
D
be taken
How ___Mike have refused such a good opportunity to go abroad for further study?
#87462
A
need
B
must
C
can
D
might
—Could I play computer games for a while, Mum? I’ve finished all my homework. —Oh, dear, if you _____.
#87248
A
can
B
dare
C
should
D
must