Insuchdryweather,theflowerwillhavetobewateredifthey

問題詳情：

 In such dry weather, the flower will have to be watered if they _____________. A. have survived       B. are to survive       C. would survive       D. will survive

【回答】

B

知識點：一般將來時及其被動式

題型：選擇題