1、The chief editor asked me to write one more article for their newspaper,_______ is about the wage

题目

1、The chief editor asked me to write one more article for their newspaper,_______ is about the wage of the farmer workers.
A which B one 为什么不用A?
2、Person under 16 _____ not be employ in our country.A shall B can C will
为什么用A ,B 为什么不行?
3、You ought to have called him yesterday.
Yes,I know I ______
A ought to B should have
A为什么不行?

答案

1.如果用A,则which指逗号前的所有内容
2.shall表示强制,用于法令、条约、规章中,意为“必须,应该”,而can not确有“不允许”的意思,但语气显然不如shall
3.should have done,指“本来应该做而没有做”