题文
Excuse me. I _______ I was blocking(挡) your way.
| A．didn't realize | B．don't realize |
| C．haven't realized | D．wasn't realizing |
Excuse me. I _______ I was blocking(挡) your way.
| A．didn't realize | B．don't realize |
| C．haven't realized | D．wasn't realizing |
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