“我是学生会主席李华,上周我以高中生饮食问题作了一次调查”英文怎么写

Question

上周我们学生会就高中生在校饮食及安全进行了一次调查

Answer 1

Last week I ran a survey about eating issue of the senior school students.
Last week the student union conducted a survey about food safety at school of the senior school students.