Now most families have only one child _____ our country’s one-child policy.
— When did Prince William and Kate get married?— They ______ for about two years.
— Be quiet, the head teacher Mr. Gu is coming.— Don’t worry. It _____ be him. Mr. Gu is much fatter.
— How much are the two pairs of trousers? — They are not expensive. I think one hundred dollars ______ enough.
Wu Bing is remembered _______ the most beautiful driver because he devoted his life _______ his work.
The temperature now is much higher than______of 100 years ago because of more and more greenhouse gas.