题目

His job at the hospital did not pay much, so he found another _____.    A. on the rise       B. on the spot    C. on the decline    D. on the side 答案：D 解析: on the side(=in addition to a main thing) 额外；作为兼职：1）He ordered a hamburger with onions and French fries on the side. (=He ordered a hamburger with onions and French fries extra.) 2)He does some house-keeping work on the side.(他帮人家做些家务活作为兼职。)on the rise(作表语)在上升；on the spot 现场；on the decline (做表语)在下降：The popula爸爸开车去开会，早上7：30从家出发，上午9：10到达会场，路上一共用了 分钟．