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高二英语两题1——what's the matter?——there are several types of tv s

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高二英语两题
1——what's the matter?——there are several types of tv sets__,but i'm at a loss which to buy.
A.to be chosen Bto choosefrom
2——You should have thanked the woman who had helped you before you left.
——I meant__,but when i was leaving i couldn"t find her anywhere.
A.to do B.to C.doing D.dong it
高二英语两题1——what's the matter?——there are several types of tv s
1——what's the matter?——there are several types of tv sets__,but i'm at a loss which to buy.
A.to be chosen Bto choosefrom
答案:B
[解析]动词不定式作定语,当其被修饰的词表示不定式动作发生的场所、所借助的工具等时,不定式后需带相应的介词.本题中 TV sets便是 choose发生的场所,意为“从……中选”,故应带介词from.
2——You should have thanked the woman who had helped you before you left.
——I meant__,but when i was leaving i couldn"t find her anywhere.
A.to do B.to C.doing D.dong it
答案:B
[解析]该题考查动词不定式的省略.当动词不定式指代前文中所说的相同动作时,可以将动词省掉而只保留不定符号to,但当to后为have或be时,have和be均不能省略.本题中不定式代前文所说的 thank,故省略.