_ _ _ _ that he should be careful对他来说小心是必须的
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/05 12:08:49
_ _ _ _ that he should be careful对他来说小心是必须的
_ _ _ _ that he should be careful对他来说小心是必须的
_ _ _ _ that he should be careful对他来说小心是必须的
it's necessary
但是后面的should必须删掉,it's necessary that (should) do 是固定搭配