The volunteers try to convince people _____ the fact that some species are in danger of _____.
Luckily, the accident didn’t do________ either of the cars.
The news of the mayor’s coming to our school for a visit was _______ on the radio yesterday.
Thank you for the trouble that you had ________me with my studies.
---Are you still busy?---Yes, I _______my work, and it won’t take long.
It’s impossible for all the people to get jobs because ________of them are not fit for them.