________ his appearance, he is most probably a new teacher.

My friend Tom is always ready _____ others. He oftenteaches______ English.

Unfortunately, it was in Yushu County, ______ a 7.1-magnitude earthquake happened on April 14, 2010, ______ a large number of students were buried inside damaged schools

Uncle Ted was very rich. But now he has no place to .

________ the parents had read his letter ________ the true state of affairs.