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    7. —She was late for the party.

    —That’s _________she had forgotten the exact time.

    A.why                                        B.how?

    C.because                                     D.whether?

    C


    解析:

    由上下文得知，此句用于阐述说明迟到的原因；此处为“because”引导的表语从句；“because”意为“因为”。?

    答案：C

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