一
1.It is likely
2.When he finished (要注意时态,前面有人用的finishes是错的)
3.has been back
4.got on (这里的went on board是指上飞机这个过程动作,而前面有人用was on,就变成了已经在飞机上这个状态,所以是错误的)
二
1.in temporary care of
2.think about (前面有人用think over,可是需要写成think it over,所以不符合题目)
3.put the book back,can't be found.
4.inquired into,it happened
5.when,showed up (前面有人用arrived in,但是需要加地点才对,也有人说arrived there,但是上下文没有说there,here,所以需要用一个showed up,不必牵涉到上下文)
6.did researches,a base (做研究要用do/did,如果用make/made就是错的)
7.burst into laughter (burst的过去式和过去分词都是burst,没有bursted,所以前面有人的答案是错的.)