【B13】A．untilB．beforeC．whenD．as

【C5】A．untilB．onceC．afterD．since

John fell asleep he was listening to the music.A．afterB．beforeC．whileD．as soon as

Japan has taken a more independent stance______.A．as it does beforeB．as it did beforeC．tha

______dinner is ready, I 11 give you a call.A．As soon asB．No sooner thanC．Hardly whenD．Oth

He must have heard the bad news, he looks upset.A、becauseB、forC、whenD、as

He had just got out of the bus there was a fire in it.A、whileB、tillC、whenD、as