By 1999,astronomers had discovered 17 nearby stars that are orbited by planets about the size of Jupiter. A. had discovered 17 nearby stars that are orbited by planets B. had discovered 17 nearby stars with planets orbiting them that were C. had discovered that there were 17 nearby stars that were orbited by planets D. have discovered 17 nearby stars with planets orbiting them that are E. have discovered that 17 nearby stars are orbited by planets 这里的B选项有没有跳跃修饰呀,到底是算修饰planets还是stars呢??求助求助!
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