--I lost my MP4 on my way home this afternoon.

    -- _________! You must be careful next time.

    A．Take care                                       B．Look out

    C．Pay attention to                                 D．What a pity

--I lost my MP4 on my way home this afternoon.

    -- _________! You must be careful next time.

    A．Take care                                       B．Look out

    C．Pay attention to                                 D．What a pity

--I lost my MP4 on my way home this afternoon.
-- _________! You must be careful next time

1. A.
   Take care
2. B.
   Look out
3. C.
   Pay attention to
4. D.
   What a pity