friend的形容词的比较级是？

This new, friendlier approach had some useful consequences.

这崭新而友好的接触产生了一些有用的结果。

She has grown much friendlier in the past few months.

她在过去几个月里变得友好了许多。

Several things have happened since those friendlier days.

自那时的友好年代之后，发生了一些事。

This software is much friendlier than the previous version.

这个软件比先前的版本好用得多。

By using first names only, we felt friendlier towards each other.

通过直呼其名，我们互相之间更加亲切友好。