add in/add on/add up /add to 有什么区别

应该填add to.
add up
英:To be reasonable plausible or consistent; make sense中:言之有理,有意义：合理的,似可信的或一致的；使有意义 The witness's testimony simply did notaddup.证人的证词根本不合理.
英:To amount to an expected total
中:符合预期值：加起来达到的预期总数 a bill that didn'taddup.与预算不符的帐单.
英:To formulate an opinion of
中:评定,看法：形成对…的意见 added up the other competitors in one glance.一眼就形成对其他参赛者的看法.
英:addup to Iaddall the figures up to 100 .
中：我把所有的数加起来一共得100.
add (sth) to 往...中添加.
Pleaseaddsome salt to the soup.
请往汤里加些盐.
add on (在计算或目录的末尾额外)加上,附加
Here is your bill; we've added on the five per cent service charge.这是您的账单,我们已把5％的服务费加进去了.
add in 加进去,计算在内; 包括
If there is going to be a study group,please don't forget to add me in.要是成立学习小组,别忘了把我算进去.