摘要： ---Excuse me, could you tell me ? ---Sorry, sir. I wasn’t there at that time. A. how did the accident happen B. how the accident happened C. how does the accident happen D. how the accident happens
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---Excuse me, could you tell me _______?
---Sorry, sir. I wasn't there at that time.
A. how did the accident happen
B. how the accident happened
C. how does the accident happen
--- Excuse me, could you tell me _____________?
--- Sorry, sir, I wasn’t there at that time.
A. how did the accident happen B. how the accident happened
C. how does the accident happen D. how the accident happens
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---Excuse me, could you tell me _______?
---Sorry, sir. I wasn’t there at that time.
---Sorry, sir. I wasn’t there at that time.
| A．how did the accident happen | B．how the accident happened |
| C．how does the accident happen | D．how the accident happens |