问题补充:
(·重庆部分学校高三联考)At the edge of the grass,theres a sign saying“ the grass”.
A. Keep up
B. Keep away
C. Keep off
D. Keep back
答案:
A. Keep up
B. Keep away
(答案→)C. Keep off
D. Keep back
解析:考查动词短语辨析。句意:草地边缘有一块牌子,上面写着“勿践踏草地”。keep off表示“使……不接近,远离……”,符合语意。A项表示“保持,跟上”;如果选择B项,要在后面加上from,keep away from表示“远离”;D项表示“隐瞒,阻止”。