-- I didn't see you at the meeting yesterday. Why?
--I _______ for an important telephone call at that moment.
| A．wait | B．waited |
| C．am waiting | D．was waiting |
-- I didn't see you at the meeting yesterday. Why?
--I _______ for an important telephone call at that moment.
| A．wait | B．waited |
| C．am waiting | D．was waiting |
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