你可能感興趣的試題

（）, which consisted of seven short blasts and one prolonged blast, all passengers have to go to their assembly station.

A.When the distress alert is sounded
B.When the emergency equipment is switching on
C.When the general emergency alarm is sounded
D.When the distress broadcast is sounded

單項選擇題

We have just received a message from shore（）assistance is on the way.

A.When
B.Where
C.how
D.that

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