—Most of the students went to the party yesterday. It is a pity you were absent.
—I wish I . But I was terribly busy.
—I wish I . But I was terribly busy.
| A.did | B.had | C.were | D.would |
The chairman was about to declare the conference open ____ the lights went all out.
| A.as | B.while | C.then | D.when |
The chairman was about to declare the conference open ____ the lights went all out.
| A.as | B.while | C.then | D.when |