MARK THE LETTER A,B,C,OR D ON YOUR ANSWER SHEET TO INDICATE THE SENTE...
Câu 19: Mark the letter A,B,C,or D on your answer sheet to indicate the sentence that best
combines each pair of sentences in the following question.
We spent about one-third of our lives sleeping. We know relatively little about sleep.
A.
We know relatively little about sleep, as a result, we spend about one-third of our
lives sleeping.
B.
We shall know more about sleep if we spend more than one-third of our lives sleeping.
C.
We spend about one-third of our lives sleeping so that we know relatively little about sleep.
D.
Despite spending about one-third of our lives sleeping, we know relatively little about sleep.