They haven't decided ___ they will go for a drive on Sunday or not.
| A．that | B．how | C．which | D．whether |
He asked _______.
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. Fortunately we had a map, without we would have got lost.
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_______ meet my uncle at the station, I went there by taxi instead of by bus.
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. The result depends on the use we _______ the energy.
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. My plane _________ at 8:30 am, so I _________ home at 8:00 tomorrow morning.
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