Jack worked hard at his lessons and to his satisfaction, he gained to a famous university three years ago.
They ______ so tired if they ______ for a whole day.
Scarcely had they settled themselves in their seats in the theatre ______ the curtain went up.
What you told me the other day is really true,_______?
The happiest of people don’t ______ have the best of everything; they just make the most of everything that comes along their way.
China’s population is expected to increase to about 1.5 billion in 2040, _____ it will start to decline slowly.