A. as soon as B. when C. unless D. on condition that
A. before B. since C. when D. after
A. as B. while C. when D. after
A. Unless B. While C. Once D. Though
A. than B. when C. then D. before
A. as B. therefore C. if D. in order that
A. since I last saw you B. ago I last saw you C. when I last saw you D. then I last saw you
A. Though B. As soon as C. Seeing that D. Until
A. so interesting a topic that B. such interesting topic that C. a interesting topic so that D. a very interesting topic so that
A. since B. until C. before D. when
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