【C10】A．whenB．afterC．untilD．while

【C10】A．whileB．beforeC．untilD．after

【C10】A．whenB．thoughC．whileD．however

【C14】A．whenB．afterC．alongD．as

【C12】A．whenB．thoughC．untilD．for

【C9】A．whenB．ifC．untilD．after

A．only whenB．soon afterC．even ifD．as if