unit13we’retryingtosavetheearth第2课时学案内容摘要：
a part in keeping the city clean. Possible answers: Have taken, helped, considered, had had, took, think, came, trying., play 2) Fill in blanks with proper modal verbs. Can would could have to should might/may must When it es to saving the earth, people _______ think that big things __________be done. However, many fet that saving the earth begins with small things. For example, You _________ save electricity by turning off the lights when you leave a room. You ____ also use paper or reusable bags instead of plastic bags. In some stores, you now __________ pay for plastic bags. I think this is a great idea. And instead of driving to school or work, you ________ ride your bike or walk. If it’ s far, you ________ take the bus. All these small things ______ add up and 【探究提升】 一． Fill in blanks using proper forms of given words. I39。 ll give the book to him as soon as he _______ back(e). ______ the baby _______ crying yet? (stop) I don39。 t know whether mother ________。阅读剩余 0%
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