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The phone _ ____ .
The phone is ringing .
The bell _ ____ .
The bell is ringing .
*
bark（狗）吠，叫
loudly大声的
The dog is barking loudly.
讲解：play the +乐器
play the suona
learn
He's eating ,
the phone is ringing.
and
He's eating ,
but the phone rings.
?He's eating , and the phone is ringing.
?He's eating , but the phone rings.
and 表示并列。连接两个正在进行的动作，动词的形式一致，都用be+v-ing 形式。
but描述正在发生某一动作的偶然事件。其结构：主语+ be +v-ing，but +主语+动词原形/动词单三+其它。
Compare
She's watching TV, but the bell rings.
*
She is playing the suona,but the dog starts to bark loudly.
2.What is Daming doing when the phone rings?
3.What happens when Daming is playing the suona again?
4.What does the dog start to do when Daming is playng the suona for the third time?
1.Who is having a birthday party?
Questions
Daming is playing the suona,