выпишите предложение в котором глагол сказуемое обозначает действие в прошедшем

Выпишите предложение в котором глагол сказуемое обозначает действие в прошедшем неопределенном времени
1.1 ecological catastrophes do a lot harm to Nature, but they are much more dangerous for man
2.2 ecological catastrophes did a lot harm to Nature, but they are much more dangerous for man
3.3 ecological catastrophes will a lot harm to Nature, but they are much more dangerous for man

4.1 a production operator checks and operates production equipment 5.2 a production operator check and operate production equipment
6.3 a production operator checked and operated production equipment