Professor Li and his wife are now at work on a novelnext year.A. to publishB. being publis

问题补充：

Professor Li and his wife are now at work on a novelnext year.

A. to publish

B. being published

C. published

D. to be published

答案：

A. to publish

B. being published

C. published

(答案→)D. to be published

解析：考查非谓语动词。句意：李教授和他的妻子现在在从事一部明年要出版的小说。根据时间next year指的是将来，应用不定式的被动式，所以用to be published，在这里作定语。选D。