The factory was built in a secret place, around ________ high mountains.
| A．which was | B．it was | C．which were | D．them were |
相关试题
All their attempts to rescue the child from the burning building were _____.
He died soon afterwards.
| A．in place | B．in return | C．in vain | D．in order |
Seeing the picture ,she could resist _____.
| A．laughing | B．to laugh | C．laughed | D．being laughed |
--Could you do me a favor?
--It depends on _____it is.
| A．which | B．whichever | C．what | D．whatever |
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