It would help if you gave us the sentence to figure out the question.
The repetition of "you" in any sentence would imply that the speaker is talking to a group of people or one person in particular as in yourself.
A. is your answer you can find other things to do if you are angry i did the same thing as jamal so i can relate.
Answer: The two complex sentences are:
Because general ventilation does not achieve the necessary control, we therefore recommend that all welding sites install extra fans and venting.
Since individual staff members will be initially responsible for their own safety, you should ensure that welders are suitably instructed and trained in the use of these controls.
Explanation:
When a sentence contains an independent clause and at least one dependent clause, we consider that sentence complex. An independent clause is a group of words that can stand on its own as a sentence. On the other hand, a dependent clause does not express a complete thought and cannot stand alone.
In the sentences listed above, the two complex sentences are the second and the last one. They both begin with a dependent clause that cannot stand on its own and is followed by an independent clause.
