We should think of ways to stop the waste from the factory _____ our living environment.
. His attitude to us is _____ of a comrade.
. He was ill. _____ is why he didn’t attend the meeting.
. —Shall I give you a ride as you live so far away? —Thank you. _______.
If I _______ you, I would go with him to the party.
. —We’re going to Paris for Sylvia’s birthday. But it’s a secret. —Is it? OK, I________ her.