Volunteering gives you a chance __________ lives, including your own.
| A．change | B．changing |
| C．changed | D．to change |
He who is proud of his wealth has rarely _____else to be proud of.
| A．anything | B．something | C．everything | D．nothing |
.– She was in clas on Friday afternoon, but no one has seen her since.
---She _____ an accident.
| A．might have | B．might have had | C．may have | D．ought to have had |
The city ____ by an army of 600 men was difficult to take.
| A．defending | B．to defend | C．having defended | D．defended |
Two fifths of the police _____ in the school near the town.
| A．has trained | B．have trained | C．has been trained | D．have been trained |
.We would like to go and thank him ourselves, but we _____ out his address yet.
| A．haven’t found | B．hadn’t found | C．didn’t find | D．don’t find |