问题补充：
【小题1】They were going to have a party last Saturday but (决定不履行) at the last
minute.
【小题2】 (无论在什么地方) he may be, he will be happy.
【小题3】In the end, it (归结为) two choices: you either improve your work or
leave.
【小题4】 I the copy (与...比较) the original, but there was not much difference.
【小题5】You can’t escape punishment.
= You can’t escape .
【小题6】The advanced scientific technology benefits us.
= We the advanced scientific technology.
【小题7】He saved the drowning boy at the risk of losing his own life.
= He risked to save the drowning boy.backed out
答案：
(答案→)backed out
解析： 略
