问题
选择题
People should __________ from __________ down the trees to protect the earth.
A.be stopped, to cut
B.stop, to cut
C.be stopped, cutting
D.stop, cutting
答案
答案:C
题目分析:句意为:应该阻止人们砍伐树木以保护地球。stop sb from doing sth是固定搭配,表示“阻止某人做某事”,根据语境,句子的主语是动作的承受者,应用被动语态。故选C。