Question

The woman is my father's sister.she came to see mee last week.
(Combine into a complex sentence)

Answer 1

The woman is my fathers sister and she came to see me last week

Answer 2

A complex sentence comprises of both the dependent clause as well as independent clause.

Where the independent clause is responsible for providing the information and dependent clause shares the details.

Therefore, keeping in mind this, the above given sentence will be made in the following way “my aunt came to see me last week because she is my father’s sister.”