Question

In such dry weather the flowers will have to be watered if they ____.

A．have survived

B．would survive

C．are to survive

D．should survive

Answer 1

C

句意：在如此干燥的天气中如果这些花一定要活着的话，它们必须被浇。在此题中be to do 表示将来，一定要发生，注定会发生，所以选C。