_____________have they been married? —For twenty years.
—If a="4," b="5," what’s the answer to the question “ a + 2ab +1 =?” — .
— I don’t know if Aunt Li these “stay-home children”tomorrow morning.— If I her, I would come earlier.
—Up to now the Chinese Communist Party(中国共产党)has nearly history.—Yes, it was founded July 23rd, 1921.
—How many teachers are there in your school?— them over two hundred.
—Where did you go last week? —I went to Zhang Aiping’s hometown and visited the house he was born in.