【C6】A．whereB．becauseC．immediatelyD．when

【C6】A．whereB．whichC．thatD．as

The time will come ______ man can fly to ______ he likes in the universe.A．how…whereB．when

【C6】A．whichB．whereC．whatD．when

It was in Xiamen I saw the sea for the first time.A、whereB、thatC、when

【C7】A．althoughB．becauseC．only ifD．when

【C6】A．even ifB．untilC．ifD．when