試題詳解

20. Which of the following is grammatically accurate?
(A) Malvin Gray Johnson is noted especially for the pictures who he painted in Brightwood, Virginia, in the late summer of 1934.
(B) Successful economists must be able understand the effect of world events on national economies.
(C) The distinction between complex and simple lipids lie in their cell structure.
(D) The fundamental problem of a tax system is to collect enough money to pay for the expenses of government.