“了”表示情况的变化（2）

“了” indicating a change of situation (2)

Sentences with a noun phrase, a subject—predicate phrase, or an optative verb as the predicate can all take “了”after them to indicate a change of situation or the start of a new situation. This kind of sentence functions as a reminder or attracts people’s attention.

For example:
A: 现在几点了？
B：现在八点半了。
A：他几岁了？
B：他三十岁了。
我妈妈身体好了，现在可以上班了。
现在他们人退休了，休闲的时间也多了。
丁力波会打太极拳。
现在可以进来了。

The V/A-not-V/A question the same meaning with the “…了+没有？” structure. For example:
她身体好了没有？