1.he\ play\ little\ the\ since\ known\ a\ boy.\ He's\ piano\ was\ how\ to
He’s known how to play the piano since he was a little boy.
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2.since\ I've\ was\ in\ I\ astronomy\ young.\ interested\ been
I’ve been interested in astronomy since I was young.
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3.since\ been\ they\ college.\ engaged\ They're\ finished
they’re engaged since they finished college.
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4.been\ he\ a\ cooking\ He's\ graduated\ from\ chef\ school.\ since
he’s been a chef since he graduated from school.
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5.she\ wanted\ be\ to\ teacher\ eighteen\ She's\ a\ years\ since\ old.\ was
she’s wanted to be a teacher since she was eighteen years old.
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6.moved\ ago.\ business\ They're\ their\ year\ owned\ since\ a\ they\ here\ own
They’ve owned their own business since they moved here a year ago.
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樓上的怎么回答的呀,你的詞跟人家原先給的都不一樣.