I'm happy he's finally settled down with a nice girl.

I am happy to do that.

（我乐意去做这件事情。）（我做这件事情很高兴。）

And I'm happy, happy that it's not true

而我会觉得幸福，因那不是真的而觉得幸福。

I'm happy with the way things have panned out.

我对事情的发展感到很满意。

I feel happy about my condition.

我很满足于自己目前的状况。

And I'm happy to be able to say to you that the answer is a resounding42 yes.

我很高兴我可以告诉你说这个答案是，完全可能。

I'm happy working for this company.

（我很高兴为这家公司工作。）

It was only three minutes, but I was happy that I did something special tonight.

只有三分钟,但我很高兴今晚我做了一些特别的事情。

If you two are happy, then I'm happy for you.

如果你们俩开心，我也会为你们开心。

The crowds around him began to thicken.

他四周的人群密集起来。

This noun can be used in the singular number.

这个名词只有单数.

The plural of a noun is usually made by adding-s to the singular.

名词复数通常以单数加-s构成.

The singular form of " dogs " is " dog ".

“ dogs ” 的单数形式是 “ dog ”.

The singular of " mice " is " mouse ".

" mice " 的单数形是 " mouse ".

Write in the third-person narrative form.

以第三人称的叙述形式写.

I have lived with him on the best terms and bear him friendship.

我跟他住在一起，相处得非常不错，我把他当好朋友。

I have nine good friends.

我有九个好朋友.

I arranged to meet a friend at 1 o'clock.

我约好朋友在一点碰头.

You always were a good friend.

你从来都是我的好朋友。

We remained good friends.

我们一直是好朋友。

Last, points out the importance of the interior forestation in habitancy space and the guiding significance of behaviouristic psychology in houseplant application.

最后得出结论，提出居住空间中室内绿化的重要性以及行为心理学对室内植物应用的指导意义。