Animals do different amazing things to __________ low temperatures when winter comes. Some head for warmer places, while others put on a thick coat of fur.
It was in 1969 ___ the American astronauts first succeeded in landing on the moon.
Country life provides him with peace and quietness, ______ what he can’t enjoy living in cities.
What the teacher said in class set all the _____ a lot.
By the time I _____the railway station, the train _____.
_____ teaching in a university, he also spent some time teaching in a night school.