It was the third time that the boy _________ late. So his teacher got very angry.
| A．have been | B．was |
| C．had been | D．was being |
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 |