Either you or one of your students ______ to 33. Either you or one of your students ______ to attend the meeting that is due tomorrow. A. are B. is C. have D. be
【简答题】A.They studied variations in the appearance Of' the parent stars. B.They were able to see the planets with a telescope. C.They compared the parent stars to the Sun. D.They sent astronauts on a mission...