itis difficult for him to give up smoking. 哪些是主语、哪些是系动词、哪
it是形式主语
is是系动词
difficult 是表语
for him 是表语的补语
give up smoking才是真正的主语
is是系动词
difficult 是表语
for him 是表语的补语
give up smoking才是真正的主语
温馨提示:答案为网友推荐,仅供参考
第1个回答 2020-03-31
主语: give up smoking
系动词:is
表语: difficult
系动词:is
表语: difficult
第2个回答 2020-03-30
主语to give up smoking
系动词is
表语difficult
系动词is
表语difficult