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The poor boy ____ the test again; in that case,his mother wi

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The poor boy ____ the test again; in that case,his mother will be very disappointed.
a.must have failed B.might fail C.could have failed D.should fail
9.--- Why ____ it rain now?I ___ go to the concert at 7.
--- What a pity!
A.can; might not B.should; needn’t C.must; can’t D.need; mustn’t
10.-- We need some fresh air,but the window open.
-- _____I help you
A.didn't; Will B.shan't; Need C.mustn't ; May D.won't; Shall
拒绝瞎蒙
The poor boy ____ the test again; in that case,his mother wi
第一个不是假设 是让步 B
第二个A can责备 might not 有部分推测意味 can't就代表着直接确定了到达不了,明显下雨的话他是可能性,而非绝对性.所以选A
第三个D won't 忘了怎么解释,不过你记住,通常都是用won’t没什么意外.
你这是学情态动词 我这还算瞎蒙么?都给你讲清楚了