问题

_______ the apartment, the firefighters shut off the gas, opened the windows and rescued the oldcouple.[ ]

A: To break into
B: To be broken into
C: Having broken into
D: Broken into

正确答案是：

同类题型

Don’t cross the road when the traffic lights are red.– .

The ideapuzzled me so much that I stopped for a few seconds to try to _______

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Hard work _____ success and failure ______ laziness.[ ]

I’ve got a ticket to the opening ceremony ofthe World Cup in 2014. I’m leaving for Brazil in a few months. — What a lucky guy! _______.