Question

In science fiction we read of flying saucers travel through _____ space, so people want to have ______ better knowledge of the universe.

A. the; a                     B. /; /                          C. the; /                    D. /; a

Answer 1

D

解析:

space作“太空；空間”講時(shí)，是不可數(shù)名詞，前不需冠詞。have a knowledge of 意為“對(duì)……理解/ 熟悉”。如：He has a good knowledge of politics.（他對(duì)政治非常熟悉）。故D是正確答案。