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. Where was your brother at this time last night? He was writing an ______ I was watching TV at home. A. after B. as soon as C. until D. while 42. You can go swimming ______ I’ m having lunch. A. while B. before C. as soon as D. so that 43. It is summer now in China, ______ it is winter in Australia. A. until B. before C. since D. while 44. You have to leave now ______ you can catch the early bus. A. as soon as B. when C. because D. so that 45. It’ s raining outside. Don’ t leave _____ it stops. A. when B. until C. since D. while 46. You can’ t go out and play _____ you’ ve done your homework. A. since B. until C. when D. while 47. Readers won’ t be interested in a ic strip _____ it doesn’ t have much action. A. unless B. because C. when D. if 48. Studying in groups is necessary _____ you want to do well in school. A. though B. unless C. until D. if 49. My father has a great sports collection, _____ he plays sports every day. A. and B. or C. but D. so 50. A snake bit him _____ he went to see a doctor at once. A. because B. where C. so D. if 7C 學(xué)科網(wǎng),最大最全的中小學(xué)教育資源網(wǎng)站,教學(xué) 資料詳細(xì)分類下載!