单选题
When preparing elementary school test, care should be taken______. A. not to make the vocabulary more difficult than necessary B. not to make the vocabulary that difficult C. so as to not make the vocabulary part too hard D. in not making the vocabulary a problem in terms of it difficulty
【正确答案】
A
【答案解析】本题意为：准备小学测试的时候，不必把注意力放在词汇的难度上。此题考查”not more +adj．+than necessary”这一结构的用法。