【C13】A．althoughB．whenC．asD．even if

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

【C9】A．soB．whenC．asD．whereas

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

【C13】A．althoughB．ifC．whenD．since

【C14】A．AlthoughB．ThereforeC．HoweverD．Even so

【C13】A．alsoB．becauseC．asD．so