问题
选择题
________is dangerous for us to swim in the river alone.
A. It B. That C. This
答案
A
考查it作形式主语的用法。代替动词不定式 代词是it;
搜题请搜索小程序“爱下问搜题”
________is dangerous for us to swim in the river alone.
A. It B. That C. This
A
考查it作形式主语的用法。代替动词不定式 代词是it;