题目内容
23、Do you know who is the first person _____ the moon?
A. set foot on B. setting foot on C. sets foot in D. to set foot on
试题答案
23、C
解析:小题考查了时态--现在完成时。句中有明显的时间状语是so far到目前为止。
Do you know who is the first person _____ the moon?