托福听力每日一练 句子（78）（在线收听）

15.(A). He interferes in the affairs of others.

(B).He frequently receives medals.

(C). He is in business of selling metals.

(D). He operates several businesses.

16.(A). He left the laboratory at three o’clock.

(B). He was unable to perform the experiment.

(C). He gave up his laboratory courses.

(D). He did three experiments.