The word "subjects" in the sentence of Paragraph 5 "Contraction of front and side parts—as
A. something to be considered
B. branches of knowledge studied
C. any member of a state except the supreme ruler
D. persons chosen to be studied in an experiment
Some people consider______cruel to use animals for experiment.
A. that it
B. it
C. it be
D. it being
What did the man give the woman?
A. His address.
B. His recommendation.
C. His business card.
D. A hotel's number.
How is clean water brought to our homes?
A. Through pipes from the sewage works.
B. Through underground main pipes.
C. Through pipes from storage tanks.
D. Through small pipes under the road.