Friendships between girls are usually ________ shared feelings and support, but friendships between boys are based on shared activities or interests.
They’ve finally decided to put an end to the long and bitter________between them and make peace.
Stephen Hawking believes that the earth is unlikely to be the only planet_______life has developed gradually.
Between the two generations, it is often not their age, _________their education that causes misunderstanding.
—Ken has gone to the Africa country to work as a volunteer. — I would rather he _____there. The situation there is very tense.
What the children in the mountain village need ______ good books.