After they got __________，he never remarried.
| A．divorced |
| B．divorce |
| C．divorcing |
| D．to divorce |
He knew nothing about the matter, but he talked as if he __it.
| A．knows | B．knew | C．had known | D．would know |
He ____ the cave before the police arrived, but he failed.
| A．managed to flee away from | B．tried fleeing out of | C．managed fleeing | D．tired to flee |
It was proved that the problem __ partly in the air pollution.
| A．lies | B．lied | C．lay | D．laid |
The cruel war __ his wife and children.
| A．robbed | B．robbed of | C．robbed him | D．robbed him of |
The boy seized a stick and ___ the dog, but it ran away.
| A．beat | B．struck at | C．hit | D．knock at |