题目

It was ___ cash that prevented me from joining you at lunch today. A. lack of         B. the lack of       C. lacks of            D. a lack of 答案：D21、They are very familiar with this kind of business, so there’s no need to be      about the outcome． A．enthusiastic         B．optimistic          C．concerned          D．controversial 评卷人 得分 三、书面表达 （每空？ 分，共？ 分）