Question

A:Whose ___ are these? B:These coats are too big for me.They're ___ mine.

连接上面的。C:Those coats are mine.They're my ___ clothes

Answer 1

A:Whose (coats) are these? 这些大衣是谁的？
B:These coats are too big for me.They're (not) mine. 这些大衣对我来说太大了。它们不是我的。
C:Those coats are mine.They're my（new）clothes 那些大衣是我的。它们是我的新衣服。

Answer 2

coats not new
最后一个不确定
第一句是are there吧~不是are these吧~