letter reply should way we this the why toit step the to half first in cut issurprise party a let"s she for the mak

Why we should reply to the letter this way?我们为什么要用这种方式回信?
To cut it in half is the first step.第一步是把它切成两半.
Let‘s make a surprise party for her.让我们为她办一个惊喜派对.你确定你没抄错题,我觉得应该是her不是she,是不是多了个the啊,最后一个我只能连成这样