Piles of stones ________ in a corner of the courtyard, ________to be replaced.

1. A.
   lies; to wait
2. B.
   laid; waited
3. C.
   lie; waiting
4. D.
   lied; to wait

Piles of stones ________ in a corner of the courtyard, ________to be replaced.

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Piles of stones ________ in a corner of the courtyard, ________to be replaced.

[　　]

We saw piles of goods containers lie on the port,         away．

    A．waited to be carried．                                 B．to wait to carry

    C．waiting to be carried                                   D．and waited for carrying