阅读下面短文，掌握其大意，从每小题所给的A、B、C三个选项中选出最佳选项。

　　It was a hot summer evening. Kevin and his brother Alan were  41 soccer in the backyard. After a while, they decided to drink some orange juice and watch TV in the house. 42  the TV was off. Alan tried to turn it back on, but  43 happened. They soon realized that there was no electricity(电). What could they do? Kevin suggested going outside to do some  44 watching. Without streetlights, the stars were bright and  45 to see. Lying on the grass, they saw different kinds of stars  46 they even saw the planet Mars. Kevin and Alan had never realized  47 fantastic the night sky could be.

　　After watching the stars for an hour, the boys  48 the house. It was very dark except for a few  49 that their parents had lighted. The family spent the night playing cards and telling stories by candle light. Kevin and Alan had never thought of having such a night  50 electricity like that before. They really enjoyed watching stars.

　　41. A. buying                        B. selling                    C. playing

　　42. A. Luckily                        B. Suddenly                C. Certainly  

　　43. A. everything                    B. anything                C. nothing  

　　44. A. flowers                        B. stars                    C. birds

　　45. A. easy                        B. difficult                C. impossible

　　46. A. or                            B. and                    C. but  

　　47. A. what                        B. how                    C. which

　　48. A. went into                    B. went over                C. went up

　　49. A. matches                        B. lights                    C. candles

　　50. A. without                        B. with                    C. throughout