题目内容
完成句子
These beer glasses ________(是用玻璃制造的)．
These books are primarily ________ ________ the use of beginners．这些书主要是供初学的人使用的。
These students ________(标出自己的名字)on their uniforms．
These measures would ________ ________ ________ ________ ________(作出重要贡献)reducing industrial accidents．
These books were left _________(归你管)．
