the car started.A. The signal givingB. The signal is givenC. The signal givenD. Having g

问题补充：

, the car started.

A. The signal giving

B. The signal is given

C. The signal given

D. Having given the signal

答案：

A. The signal giving

B. The signal is given

(答案→)C. The signal given

D. Having given the signal

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