一When did you learn the news that Obama
题型:选择题
问题:
一When did you learn the news that Obama made a trip to Canada as President?
一 ____ was on my return.
A.That
B.It
C.There
D.This
一When did you learn the news that Obama made a trip to Canada as President?
一 ____ was on my return.
A.That
B.It
C.There
D.This