问题补充:
It hasn been made clear the new underground line is to be open to traffic.
A. when
B. that
C. what
D. where
答案:
(答案→)A. when
B. that
C. what
D. where
解析:A 考察名词性从句。这是when引导的主语从句,it是形式主语。句意:新的地铁线路何时开放还不清楚。故A正确。
时间:2020-06-19 23:46:15
It hasn been made clear the new underground line is to be open to traffic.
A. when
B. that
C. what
D. where
(答案→)A. when
B. that
C. what
D. where
解析:A 考察名词性从句。这是when引导的主语从句,it是形式主语。句意:新的地铁线路何时开放还不清楚。故A正确。