S. Change these complex sentences to simple ones. 1. A tall woman who was dressed in black stood at the door.
2. When she hears the news she will be surprised.
3. If you are not well, you should not go out to play.​

1. A tall woman dressed in black stood at the door.

2. She will be surprised to hear the news.

3. If unwell, you should not go out to play.

Explanation:

A simple sentence is constituted of a singular independent sentence. It has a subject and a predicate, and it is able to convey a full thought on its own.

On the other hand, a complex sentence is constituted of an independent sentence and a dependent one. The dependent sentence cannot stand on its own since it cannot express a full thought.

To transform the sentences in the question into simple sentences, we need to eliminate the dependent clause. One way to do that is to transform it into a phrase without a subject:

"who was dressed in black" --> dressed in black

"when she hears the news" --> to hear the news

"if you are not well" --> if unwell