英语语法上一点点问题,麻烦了.

题目

英语语法上一点点问题,麻烦了.
Care should be taken when writing answers on the answer sheet as poor spelling and grammar are penalised.
Care should be taken [ when（ writing answers on the answer sheet as poor spelling and grammar ）are penalised ] .
小括号里的短语是充当are penalised 的主语么?
怎么翻译才顺畅咧?
在答题卡上答题时错误的拼写和语法会对你不利,请务必小心?可以么?对你不利,好像不好.

答案

请小心填写答题卡,因为拼写错误和语法错误会影响成绩.Care should be taken 【when writing answers on the answer sheet 】as {poor spelling and grammar }are penalised.我觉得when那个括号里面的是时间状语,大括...