问题补充:
In writing a composition, there must not be one sentence or even one word which is brought in .
A. at random
B. at ease
C. on purpose
D. at times
答案:
(答案→)A. at random
B. at ease
C. on purpose
D. at times
解析:考查介词短语。A胡乱地;B自在,舒适;C故意的;D时而不时;根据句意可知D正确。句意:在写作为的时候,千万不能有一个句子或者单词是胡乱写的。