看得出来，她在这个项目上下了不少功夫。
It is clear that she has worked very hard on this project.
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it英 /ɪt/|美 /ɪt/
is英 /ɪz/|美 /ɪz/
clear英 /klɪə/|美 /klɪr/
that英 /ðæt/|美 /ðæt/
解释
"It is clear that" 结构：it 作形式主语，is clear 作谓语，that 从句是真正的主语。表达说话人基于观察的明确判断。
It is clear that she has worked very hard on this project.
"It is clear that" 结构：it 作形式主语，is clear 作谓语，that 从句是真正的主语。表达说话人基于观察的明确判断。