问题

This is______difficult problem that few students can work it out.
A:tallest
B:hottest
C:largest
D:Highest;
B:hottest
C:largest
D:Highest;
正确答案是:
同类题型
I wonder________there are so many natural disasters across the world in 2010.
Is magazine yours,Tom.—No.I don’t have magazine like this.
I want to have a short talk with you Could you spare a few minutes _____? [ ]
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