12.—I called you at 9 last night,but no one answered.
—Sorry,I ________ sleeping.I went to bed very early.
A.need have been B.would have been
C.must have been D.should have been
答案 C
解析 根据答语中的“I went to bed very early”可知,此处为肯定推测,用must,表示问话人打电话时,答话人一定正在睡觉。must have done表示过去肯定做了某事。
13.I’m as busy as a bee;________ you bother me with so many questions now?
A.may B.must
C.can D.shall
答案 B
解析 考查情态动词。句意为:我忙得不可开交,为什么你现在偏要拿这么多的问题来打扰我呢?must有时可以表示一种不受欢迎的巧合,指某事发生得不早不迟,就在某个当紧的时候,通常含有不快、不满、心烦、恼火等感情色彩,意为“偏偏,偏要”。
14.—Did you go to the fashion show last week?
—I ________,but I was fully occupied the whole week.
A.must go B.must have gone
C.would go D.would have gone
答案 D
解析 考查虚拟语气。根据答语中的“but I was fully occupied”可知,此处是对过去事实的虚拟,应用would have done结构,表示“本来要做某事而实际上未做”,故选D项。
15.It is important to know about the cultural differences that ________ cause problems.
A.must B.dare
C.may D.shall
答案 C
解析 考查情态动词。句意为:了解有可能会带来麻烦的文化差异是重要的。此处may表示不确定的推测,意思是“有可能”。
16.—Could I have a word with you,mum?
—Oh,dear,if you ________.
A.can B.must
C.may D.should
答案 B
解析 17.My mother is a great cook and we ________ never get enough of her cookies.
A.may B.need
C.should D.can
答案 D
解析 句意为:我妈妈是一个很了不起的厨师,我们吃不够她做的饼干。can’t...enough为固定搭配,意为“无论……也不过分”。
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