How do you say

Students are studying for the final exams.

..in Chinese?

学生们正在为期末考试做准备。

xué shēng men zhèng zài wéi qī mò kǎo shì zuò zhǔn bèi 。

How do you say "I’ve taken up gardening recently and spend much of my weekends tending to my little patch." in Chinese?