. At the age of 29 Dave was a worker in a small apartment near Boston and what to do a

问题补充：

. At the age of 29, Dave was a worker, in a small apartment near Boston and what to do about his future.

A. living; wondering

B. lived; wondering

C. lived; wondered

D. living; wondered

答案：

(答案→)A. living; wondering

B. lived; wondering

C. lived; wondered

D. living; wondered

解析：

A.两空均填现在分词，用作定语修饰a worker。注意句中的并列连词and，用于连接两个相同的句子结构（即连接两个现在分词短语）。句意为：戴夫29岁时是一名工人，住在波士顿附近的一间小公寓，不知未来怎么办。