Question

Convert the following into complex sentence.
I hope to pass the test.

Answer 1

I Hope that I can pass the test.

Answer 2

The complex sentence can be made in the following manner:

I hope, I will pass the test.

Or

I hope that I will pass the test.

A complex sentence has one independent and one or more dependent clauses. The clauses in a complex sentence can be in any order. If the dependent clause is first,  a comma is usually after it.