Modern forms of transportation and communication have done much to ________ the isolation(隔离) of life in Alaska.
We hadn't met for 20 years, but I recognized her_____ I saw her.
--- “What do you think of the service here?” --- “Oh, ______. We couldn’t have found a better place.”
It is often said that _______ teachers have ______ very easy life.
____is known to all, good friends _________ happiness and value to life.
Although he talked half an hour, he couldn't give us a good ________ of the reason why he did it.