— Mary, whose photo is it?—It ______ be Lu’s. Those are her parents.A．canB．shou
题型：不详难度：来源：
— Mary, whose photo is it?
—It ______ be Lu’s. Those are her parents.| A．can | B．should | C．must | D．need |
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答案
| C |
解析
试题分析：A. can能够B. should应该C. must必须 D. need需要；句意：玛丽，这是谁的照片？它肯定是露的，这是她的父母亲。故选C.
点评：情态动词用法较多，无人称和数的变化, 情态动词后面跟的动词需用原形,否定式构成是在情态动词后面加 "not"。 must必须肯定的推测，can’t表否定的推测。个别情态动词有现在式和过去式两种形式, 过去式用来表达更加客气, 委婉的语气, 时态性不强, 可用于过去，现在或将来。中学阶段必须对它们的用法有个基本的了解，题目不难，掌握了平时出现的题目即可答出。 |
举一反三
– Must I stay here with you?
-- No, you ______. You may go home, but you _____ go to the net bar(网吧).| A．mustn’t; needn’t | B．needn’t; mustn’t | C．must; need | D．need; must |
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--Must we move to the next room?
--No, you____________ . You may still live here if you like.| A．mustn"t | B．don"t | C．don"t have to | D．won"t |
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--- That T-shirt with Yao Ming’s picture on it ________ belong to David. He admires him a lot.
---No, it ________ be his. He hates black color. | A．can; can’t | B．may; needn’t | C．must; mustn’t | D．must, can’t |
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－Is that Mary?
－No, it _______be her. She has gone to Tokyo. | A．can’t | B．may | C．needn’t | D．mustn’t |
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----Must I finish the work today, Mom?
----No, you _______________. You can finish it tomorrow.| A．mustn’t | B．can’t | C．needn’t | D．shouldn’t |
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