)How longhasshe lived in London?53. He has been to China, ____ ____?(写出反义疑问句部分)hasn’t he 4. They e back from work. (写否定句)They haven’e back from work.6What are the key wordsfor the Present Perfect Tense?7A: ______ your brother ______ his homework yet? (finish)B: Yes, he ‘s already done it.Key Key wordswordsHas finishedyet already 注意:already 用于肯定句,yet 用于疑问句和否定句中8A: _______ you ever _______ to the park? ( be )B: No, never. Key Key wordswordsHave been yet already ever never 注意:ever 曾经用于疑问句中never 从不带有否定意义9I ______ just ________ the desk, you can take it to your classroom . (mend )Key Key wordswordshave mended yet ever never just already Just 刚刚与现在完成时连用一般置句中Just now 刚才与一般过去时连用10