while i am away为什么不加ing

while i am away为什么不加ing while i am away Couly you help me look after my baby while I am ( )是填leaving还是away 为什么 I am with my sister为什么加am I and my sister怎么不加 Please look after my cat while I am away. Please ___ ___ my cat while I am away(同义句） Could you please feed my dog while I am away?(改为同义句）Could you ____ ____ to my dog while I am away? Liu Mei can look after my dog while I am away.同义句Liu Mei can__ __of my dog while I am away. I am French.中French前为什么不加a? “am”的用法“am”,我知道用于I,可为什么有些句子不加am呢?比如：I like playing football.为什么不加am也是对的? I am busy yesterday为什么加am Can you care for my pet while i am away?的同义句 can you care for my pet while I am away的同义句 While I am away,please help me_____my dogA.to feedB.foodC.feedingD.to food “He will look after my bird while I go away为什么用while不用when She looked after my baby while I was away为什么用while,不用when? 为什么I后面要加am?为什么有的时候又不加 Would you be good enough (look) after my dog while I am awayWould you be good enough (look) after my dog while I am away I什么时候加am,什么时候不加am