Protecting Our Environment
Protecting Our Environment. Protecting Our Environment. Language The present continuous tense. Look at them!. What are they doing?. 肯定 : 主语 + am, is, are + V.-ing. 第一人称单数 I. 第三人称单数 He, She, It, Jim, The bird, A car…. 第二人称单数 You. 所有人称复数 We, You, They, My friend s , Many dog s ….
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