单项选择题
A.exceeded B.overloaded C.overtaken D.overtook
Could you show me （）to operate the derrick?A.whichB.wha...
单项选择题Could you show me （）to operate the derrick?
A.which B.what C.how D.when
Be careful when you （）the derrick.A.operatedB.operateC....
单项选择题Be careful when you （）the derrick.
A.operated B.operate C.operating D.operator
Is that all right at this（）?A.highB.heighC.heightD.high...
单项选择题Is that all right at this（）?
A.high B.heigh C.height D.higher
