Question

Choose the best answer.

Which of these is a subordinating clause that can be used to complete the complex sentence?

_____ the students had to dissect a frog.

Until noon

Whether disgusted or not,

In order to pass,

While the teacher graded papers,

Answer 1

The best answer is: **While the teacher graded papers,**

So the completed complex sentence would be: "While the teacher graded papers, the students had to dissect a frog."