用 for this reason造句并翻译

Question

如题所述

Answer 1

They are there for the reason you need them to be.
他们是因为你的需要而来到你的身边
l like to study for this reason i study really hard.
我成绩很好是因为我爱学习。
For this reason,I can't go with you.就是这个原因，我不能和你一起走。

Answer 2

For this reason, prices can supposedly never go down.
出于这个原因，可以推测价格不会下降。

Answer 3

i must do my home work,for this reason, i can't play with you.
额，可以吗？