题文
—What happened________the old man last night?
—He got lost and couldn’t find the way home．
| A．to |
| B．at |
| C．about |
| D．of |
—What happened________the old man last night?
—He got lost and couldn’t find the way home．
| A．to |
| B．at |
| C．about |
| D．of |
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