He passed away at by between( at, by, between ) the age of forty.

　　　　　　（他於四十歲時去世了。）

Eggs are sold by at about( by, at, about ) the dozen.（蛋以打為單位出售。）

We pay the worker by at with( by, at, with ) the day.（我們以日為單位付工人錢。）

They are sold at by to( at, by, to ) (the price of) 50 dollars a dozen.

The car runs at by for( at, by, for ) the rate of 20 miles an hour.

　（這部汽車以每小時二十英哩的速度行駛。）

　〔表方法、手段〕He gets his living by at beside( by, at, beside ) hard work.

　　　　　　　　　　（他藉苦幹謀生。）

The dog was killed by for between( by, for, between ) him with a stick.

　　　　　　　　　　（這隻狗被他用棍子打死了。）

What do you mean by at along( by, at, along ) this?

　　　　　　　　　　（這是什麼意思？）

He came by at with( by, at, with ) bus.

　　　　　　　　　　（他乘公共汽車來。）

What time is it by at( by, at ) your watch?

　　　　　　　　　　（你的錶幾點鐘？）