He's in his mid-fifties,well,fifty-six,to be后面是to be e_______

in his mid-20's He's in his mid-fifties,well,fifty-six,to be后面是to be e_______ in his mid 30s 这是几岁?how old is mid 30s? She's in her mid be in his mid-thirties其中his有何作用, 英语翻译John had played a lot of football as a teenager and as a young man.He was mainly injury-free,but in his mid-30s he started have trouble with his left knee.While working in the garden at home one day,he felt something tear inside the knee. in one s mid thiries 翻译 in the mid 1810's怎么翻译 in the mid-60s什么意思 英语翻译Kelly works in a computer company .Today,her boss,Mr Frank Jcakson gives her a note .The note says,Please go to the airport and meet my brother ,Mick Jackson.He's in his mid-thirties and he's of medium height.He has a beard,short hair ,a 英语翻译Must have been mid-afternoon I could tell by how far the child's shadow is stretched out and He walks with a purpose In his sneakers Down the street he had Many questions like children often do...He said Tell me all your thoughts on God? in the mid-1990s 和 by the mid-1990s有什么区别? His mother is in hospityal .He is ________(s开头) He's in New York with his cousin,Simon. 翻译He is in his late 30s He's made great progress________A.in his study B.on his studyC.in his studies D.on his studies He's the best student in his school (保持原意 ) He's ( )( ) student in his school请说明原因 in his 40s英语问题1:He is in his 40s.2:He is in his 40's这两个哪个对?