问题
选择题
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
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。