“What are you doing? What are you doing? What are you doing at all?” Another cultural difference I have noticed is the frequency of sending text messages. This should var...
否定句:主语 + am/is/are + not + 现在分词... They aren't having a meeting now. 他们现在没有在开会。 疑问句:Am/Is/Are + 主语 + 现在分词...? Are they having a meeting now? 他...
例∶-What is he doing?他正在做什么? -He is running.他正在跑。 (2)当主语为第三人称复数时∶问句∶ What are they doing? 答语∶ They are+动词-ing形式(singing,playing,swimming.)(+其他) 例∶ -What are they doing?他们/她们正在做什么? -They are waiting for...
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