Waterfalls can be used to produce ______ power.

Last year, the area suffered its worst _____ in a century, bringing the waterfalls to a stream in December.

【判断题】One of the must-see attractions to visit on the East Coast must be the Niagara Falls in the state of Pennsylvania, which is divided into three waterfalls. They are American Falls, Horseshoe Falls A.对 B.错 答

—Do you have any plans for the holiday?     — Yes, I'm planning to travel to Jiuzhaigou. I'm looking forward to_______ the colourful lakes  and amazing waterfalls. A: see B: seeing C: sees D: saw