Ted woke up with a ________ and felt for the night switch.

_____ is a good form of exercise for both young and old.

David gave us a vivid            of his trip to Mount Huangshan after his return.

The mountains lie near our hotel. There is a fine ________ of the mountains from our hotel window.

Although chatting on line has exploded in popularity in recent years, there is no ________ for a face-to-face conversation.