1.Jack's mother (has to) call him at least (half a dozen) times
(until) he (comes down) to his dinner.
2.Wilson was (surprised) to find that there was only one (other)guust (except) (himself)
因为格式问题,所以给的选项我已经用括弧标出.
对不起，可能说明的不是很清楚,括弧里的是选项，只要从这几个选项中选出一个错误的就可以了。