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Did you read book last night? Yes, I did. No, I didn’t.Did she clean the desk just now? Yes, she did. No, she didn’t.否定句: They didn’t go the the part yesterday.He didn’t make model ships last week.(3)動詞過去式的變化:規(guī)則動詞的變化:Most verbs +ed eg. planted,watered,climbed。Verbs ending in e +d eg liked。Verbs ending in a consonant +y y +ied eg : study—studiedShort verbs ending in a vowel + a consonant eg: stop stopped不規(guī)則動詞的變化:is/am—was,are—were,do—did,have/has—had,make—made,flyflew/u:/eat—ate,take—took,run—ran,sing—sang,drink—drank 等等17. “Wh” questions.What are you doing?What colour is it?Which is your watch, the yellow one or the white one?How much is the toy bear