— Excuse me, but I want to use your computer to type a report.   

— You ______ have my computer if you take care of it. [ ]

A. shall

B. must      

C. need      

D. should

土方路堤填筑常用的机械有（）。

A.铲运机

B.平地机

C.装载机

D.空压机

E.挖掘机