关于“了”的英语翻译

Question

今天要去教外国小孩“了”的意思，课本上“了”有两个意思，一是：expresses a completed action，二是：indicates a change or new circumstance,那么请问，根据以上两种解释，“天晴了”，“刮风了”，“哥哥去打电话了”，“小弟弟会说话了”，“我现在喜欢上汉语课了”应该如何翻译？

Answer 1

It cleared up.
The wind started.
My brother made a phone call.
My little brother is able to talk.
I become fond of my Chinese class now.

Answer 2

Fine day
it is Windy"
"Brother is going to call sb.
"Little brother can speak now
"I love Chinese lesson

Answer 3

the sky is clear.
it's getting windy.
brother has gone to make a phone call.
little brother can speak now.
im starting to like chinese lessons.

Answer 4

It becomes sunny.
It is windy.
My brother goes to make telephone calling.
My little brother can speak now.
I like to listen to the Chinese lesson now.