Keeping an English diary can help us improve our writing (能力).
The British teacher is very humorous. He always tells us (笑话 ).
Hainan is in the (南方)of China.
In autumn, quite a few (树叶) turn yellow and fall off the trees.
Computers were (发明) not long ago, but they are very useful for us.
So far, (千) of people have died of COVID﹣19.