Nowadays, many teenagers__________ themselves to the computer games, which made them ___________ from the society.

As there is less and less coal and oil, scientists areexploring new ways of making use of______________energy, such as sunlight, wind and water for power and fuel.A．abrupt B．alternative C．authentic D．abstract B【解析】试题分析：考查形容词：

Why does Wei Fang study so hard—She studies hard _________ she can get into a good university.

Visitors were _______ at the ________pictures that the guide showed.

The old man exercises every day. He is in good health.