China’s population is expected to increase to about 1.5 billion in 2040, _____ it will start to decline slowly.

34. For a long time she couldn’t ______ the fact of her son’s death.

What’s the secret of success, Dad— More time and effort, _________ you’ll make it some day.

The bell rang and came in MrBrown, _____ a book in his handThen the class began

The flowers his friend gave him will die unlessevery day[ ]