some children _______(sit)under the tree and ______(talk) 填talk和sit的什么形式 【现在进行时】

some children _______(sit)under the tree and ______(talk) 填talk和sit的什么形式 【现在进行时】
some children _______(sit)under the tree and ______(talk) 填talk和sit的什么形式 【现在进行时】

some children _______(sit)under the tree and ______(talk) 填talk和sit的什么形式 【现在进行时】
are sitting
talking
有不会的可以再问我