9. What is a subordinating conjunction?
Two simple sentences may be joined together by using subordinate
conjunctions.
Example :
when , as , because , if , that , although , where , while , as soon as
, so , that.
10. Example :
I found a ring as I was walking in the park.
I missed the flight because of the traffic jam
She did not return home until dark, keep on working while I am away
