the project as planned we’ll have to work two more hours a day.A. To completeB. CompleteC

问题补充：

the project as planned, we’ll have to work two more hours a day.

A. To complete

B. Complete

C. Completing

D. Completed

答案：

(答案→)A. To complete

B. Complete

C. Completing

D. Completed

解析：考查不定式做目的状语：句意：为了如期完成项目，我们不得不每天多工作两个小时。因为是表示目的，所以一定是不定式，选A。