My brother began to work when he was sixteen. My brother began to_英语解答

My brother began to work when he was sixteen. My brother began to work ---- ---- ---- ---- sixteen
He is the oldest teacher in the school.
He is ----- ---- ---- ---- teacher in the school.

人气：406 ℃　时间：2019-10-17 04:40:51

解答

at the age ofHe is the oldest teacher in the school.He is ----- ---- ---- ---- teacher in the school.