Question

Mr. Green told us _____ turn the lights off when we leave the classroom.

A. not forget to B. not to forget

C. not to forget to D. to forget not to

Answer 1

C

【解析】

试题分析：句意：格林先生告诉我们当我们离开教室时不要忘了关灯。tell somebody not to do,告诉某人不要做某事。forget to do something忘记做某事（未做）；Forget doing something，忘记做过某事，（已做，只是忘记了）。根据句意，故选C.

考点：考查非谓语动词。