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orbit overlaps Neptune’s and it is smaller than the other plas . So Pluto is classfied as a dwarf pla, but no longer a pla in the solar system . Students at school will have new schoolbooks to learn the new solar system ! ① 處完成下面的句子(每空一詞) Before people Pluto in 1930, there were plas in our solar system . ② 處完成下面的句子(每空一詞) Every pla not only has its own , but also is enough . 。 如: Who knows what?s wrong with him ? 誰知道他怎么啦? 1. ——Can you tell me __________ ? ——She is in the puter lab . A. where Linda was B. where is Linda C. where was Linda D. where Linda is (09 北京中考 ) 2. To everyone?s surprise , Alex __________ play chess very well when he was only four . A . might B. should C. would D . could (09上海 中考 ) D D 典型例題 典型例題 3. You __________ jump onto a bus while it is moving . It?s too dangerous . A. may not B. mustn?t C. may D. must (09沈陽中考 ) 4. ——Shall I tell John about it ? ——No, you __________ . I told him just now . A . needn?t B. can?t C. mustn?t D. shouldn?t (09杭州中考 ) B A B you please tell us __________ in Shanghai ? ( 09上海中考) A. when will you visit the World Expo B. when you will visit the World Expo C. when the World Expo will you visit D. when the World Expo you will visit ( A ) mustn’t, needn’t, can, could, can’t, may 選用下列情態(tài)動詞填空 1. — Must I tell John the news ? — No, you . I?ve told him already . 2. — May I tak