________ excited Geoff Marcy most was whether there were planets in other solar

题干

________ excited Geoff Marcy most was whether there were planets in other solar system where life might exist.

A．It

B．That

C．What

D．Why

上一题下一题 0.64难度单项选择更新时间:2013-03-25 08:48:24

小学学科试题库

初中学科试题库

高中学科试题库