1.Nowadays some hospitals refer to patient _______ name,not

第一题 by name根据名字,with name用名字.
第二题同意你的观点,出题者欠考虑.有两个正确答案.
我网上查到别的严谨的出题者避免这种情况,如：
2.Our chairman hasn't come yet.If he______in time,we would have to put off the meeting.
A.should come B.would come
C.shouldn't come D.doesn't come
21.Our chairman hasn’t come yet.If he on time,we would have to put off the meeting.
A.should come B.would come C.shouldn’t come D.doesn’t come

1要靠语感了
B肯定错的哇 if he didn't come 就是说他过去没来过 而且是在称述一个事实

第一题，用by是因为需要表达一个‘依次’、‘以一定顺序’的意思
第二题，是因为存在一个虚拟语气

打个比喻 with hand 用手 by hand手工 后者强调方式的。前者工具
选择题要的是最佳答案。最准确的当然最好

2、以If开头表示如果就是说虚拟语气喽，后半句 would have to 就是这样。
1、不太清楚了。

by 有通过某种手段的意思 with则常表示伴随 should有万一的意思，用在句中更合适，习惯用法 多读多背增强语感，很重要