—Tony, could you give me a hand?
—Wait a minute.I ______.
| A．lock the door | B．will lock the door |
| C．am locking the door | D．was locking the door |
—Tony, could you give me a hand?
—Wait a minute.I ______.
| A．lock the door | B．will lock the door |
| C．am locking the door | D．was locking the door |
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