题目
题型：不详难度：来源：
They _________ the plane, or perhaps they have been prevented from coming for some reason.
| A．can have missed | B．can have lost | C．may have missed | D．may have lost |
答案
解析
核心考点
试题【They _________ the plane, or perhaps they have been prevented from coming for s】；主要考察你对一般现在时等知识点的理解。[详细]
举一反三
-- Why didn’t you come to see the film with your parents last weekend?
-- I _____ my lessons for the month- exam.
| A．was preparing | B．prepare | C．prepared | D．have prepared |
| A．carried | B．brought | C．taken | D．got |
| A．fall to pieces | B．fell to pieces | C．fallen to pieces | D．fall down |
．— Have you got your result of the final?
— Not yet．I was told that the papers _________-.
| A．were not grading | B．have already been graded |
| C．were still being graded | D．have not grading |
—Yes. It is said that nodding the head “No” in some Asian countries.
| A．meaning; means | B．mean; is to say |
| C．means; meaning | D．means; is to say |
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