The old man ____ go out for a walk twice a week.A.need B.needs C.needs to D.both A and B
问题描述：
The old man ____ go out for a walk twice a week.A.need B.needs C.needs to D.both A and B
I______(希望) i could go to the country in the USA.
The old man ____ go out for a walk twice a week.
A.need B.needs C.needs to D.both A and B
答
B 和 C显然不对.need无数的变化.还有第一个题目？I______(希望) i could go to the country in the USA.C为什么不对？滴一个希望可以用 hope 或wish第二个 need第三人称单数现在时没有词形变化。第一题，为什么用could你是不是把 此处的could 看成是can的过去式了？其实could 也是情态动词的一位成员，不过语气比较弱一点。