问题
选择题
--Please ___________ the machine before you start it. Maybe it’s difficult for you to make it move.
--OK. I’ll try my best.
A．look up
B．look over
C．look for
D．look through
答案
答案：B
题目分析：句意：在你发动机器前先检查机器，可能你很难使它移动。好的，我会尽力的。A. look up 在（字典、书等）中查找B. look over 仔细检查 C. look for寻找 D. look through浏览
故选B