帮个忙.回答几道题.

问题描述:

帮个忙.回答几道题.
1,Mr Green isn't____(marry) now.
2,If you are not _____(care),you may have an accident.
3,Many people lost their______(life) in the traffic accident.
4,They went there by train.(改同义句)

1 married
格林先生还没有结婚
2 careful
如果你不仔细.
3 lives
考察生命的复数形式
4 They went there on a train.
乘火车 是 on a train