Answer:
The sentences in the form of was / were + word + ing form are past continuous sentences ....
I hope now you can do it in your own.
was it helpful to you? Plz comment.
Answer:
The verb in the sentence is "review". The word "must" is a modal verb, which modifies the verb "review" in the sentence.
Carbon Monoxide is the answer
My answer is in comments because it would not let me press add answer. couldn't figure it out