His parents wouldn’t let him marry anyone ____ family was poor.
| A．of whom | B．whom | C．of whose | D．whose |
We are confident that the environment ______ by our further efforts to reduce pollution.
| A．had been improved | B．will be improved |
| C．is improved | D．was improved |
Volunteering gives you a chancelives, including your own.
| A．change | B．changing | C．changed | D．to change |
Car seatbelts save lives. Every driver should wear________to ensure their safety.
| A．this | B．it | C．that | D．one |
Last week a tennis ball hit me on the head, but I tried to _______ the pain, believing that it would go away sooner or later.
| A．share | B．realize | C．ignore | D．cause |
Many people tried to leave the country，________there was much violence and a serious shortage of food supply.
| A．where | B．which | C．that | D．what |