【C9】A．soB．whenC．asD．whereas

No sooner had we sat down ______ we found it was time to go.A．thanB．whenC．asD．while

__________ 查看材料A.soB.whenC.whyD.that

The couple had no sooner reached home ______ it began to rain.A．untilB．whenC．asD．than

【C13】A．althoughB．whenC．asD．even if

【C19】A．soB．butC．asD．for

【C9】A．soB．untilC．lestD．although