________ is known to everybody, Taiwan is a part of China. We must unify it.
A．It B．As C．Which D．What
October 15 th is my birthday, ________ I will never forget.
A．when B．that C．what D．which
We won’t give up ______________we should fail ten times.
A．even if B．since C．whether D．until
___________, Mother will wait for him to have dinner together.
A．However late is he B．However he is late
C．However is he late D．However late he is
After the war, a new school building was put up ___________there had once been a theatre.
A．that B．where C．which D．when
—What was the party like?
—Wonderful. It’s years __________I enjoyed myself so much.
A．after B．before C．when D．since
