Change the forms of the following sentences. 句型转换。
1. I buy some hot dogs and pop.（变为一般过去时）
                                                                                                    
2. Nine people are coming to the party.（对划线部分进行提问）
                                                                                                    
3. Lynn is coming.（同义句转换）
                                                                                                    
4. Danny isn't strong enough to throw the ball.（同义句转换）
                                                                                                    
5. I went to the department store with Danny.（对划线部分进行提问）
                                                                                                    

【考点】一般过去时，动词过去式,形容词,一般现在时，动词单数第三人称,现在进行时，现在分词,助动词

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