[ Mixed General Quiz ]
Which of the following systems is responsible for retaining constant blow flow throughout the body?
A. Respiratory
B. Endocrine
C. Nervous
D. Cardiovascular
E. Digestive
Select your answer:
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Grammar Clauses › ViewBecause it’s the right thing to do.
A. Phrase
B. Clause
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Which of the following sentences uses the present perfect tense correctly with a time expression?
A. He has worked here for five years.
B. She has gone to the store since three hours.
C. We have played football yesterday.
D. I have read the book two weeks ago.