Sentence Correction
试题详情
题目：
By 1999, astronomers had discovered 17 nearby stars that are orbited by planets about the size of Jupiter.
选项:
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
答案:
A
