In many people’s opinion,that company,though relatively small,is pleasant________ .
We must take measures to protect the endangered wildlife ______ itis too late.
He was in the mountain for a year. He felt as if he was ______from the outside world.
The evening news comes on at seven o’clock and ______ only thirtyminutes.
----- Must I turn off the gas after cooking? ----- Of course. You can never be ______ careful with that.
He told me he had been offered a well-paid ____, but he refused it.