Don’tletthesadnessofyourpastandthefearofyourfuture

問題詳情：

 Don’t let the sadness of your past and the fear of your future ______the happiness of your present.

A. ruin                    B. to ruin            C. ruining              D. ruined

【回答】

A

知識點：非謂語動詞

題型：選擇題