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_________, the experiment is sure to succeed.A．If carefully doingB．If carefully doneC．If it done car
题目简介
_________, the experiment is sure to succeed.A．If carefully doingB．If carefully doneC．If it done car
题目详情
_________, the experiment is sure to succeed.
A．If carefully doing
B．If carefully done
C．If it done carefully
D．If it doing carefully
题型：单选题难度：中档来源：不详
答案
B
试题分析:考查非谓语动词。从四个选项可知，此题考查非谓语做状语，动词do和句子主语experiment之间是被动关系，所以排除A、D选项。而C选项中有主语但是谓语不完整，故B选项正确。属于连词+分词形式，此处也可以看做是if it is carefully done的省略。句意：如果认真做的话，这个实验肯定能成功。
题目简介
_________, the experiment is sure to succeed.A．If carefully doingB．If carefully doneC．If it done car
题目详情
答案
试题分析:考查非谓语动词。从四个选项可知，此题考查非谓语做状语，动词do和句子主语experiment之间是被动关系，所以排除A、D选项。而C选项中有主语但是谓语不完整，故B选项正确。属于连词+分词形式，此处也可以看做是if it is carefully done的省略。句意：如果认真做的话，这个实验肯定能成功。