Unit 3 单元质量检测(三)
(时间：100分钟 满分：100分 本卷共4页)
Ⅰ.单项填空(共15小题；每小题1分，满分15分)
1．— ________ — there are pieces of broken glass on the floor.
—Thank you.
A．Come on B．Go ahead
C．Cheer up D．Be careful
2．Linda worked for the Minnesota Manufacturing and Mining Company, ________ as 3M.
A．knowing B．known
C．being known D．to be known
3．It's necessary for us to ________ everything ________ before the program started.
A．get; in place B．put; in place
C．get; in the place D．put; in the place
