Which of the following sentences is grammatically correct?

In the following sentence, which is the dependent clause?

As soon as your lunch break is over, head to room 12.
 

Which word in the following sentence is grammatically incorrect?

Neither Jeremiah nor Yousef have seen a dermatologist about the effects of psoriasis.
 

Which word in the sentence is used incorrectly?

It took less then seven minutes for the ambulance to arrive on the scene.
 

Select the best words for the blanks in the following sentence.

Roger ____ assist the patients _____ want help getting to and from the bathroom.
 

Select the word that makes this sentence grammatically correct.

Sonya ___ have wanted family to bring her favorite meal if the hospital had allowed outside food.
 

Which word is used incorrectly in the following sentence?

The amount of people still in the waiting room is inexcusable.
 

Which of the following sentences is grammatically correct?

Select the word that best completes the following sentence.

The confused patient wasn’t sure whose clothes she was wearing, but I assured her they were _____.
 

Select the sentence that is grammatically correct.