Question

【题目】Tom didn’t believe how terrible the earthquake was ____ he experienced one.

A. if B. because C. until D. since

Answer 1

【答案】C

【解析】句意：汤姆不相信地震有多么可怕，直到他经历了一次地震。A. if连词，如果，引导条件状语从句；B. because连词，因为，引导原因状语从句；C. until连词，直到，引导时间状语从句, not...until...直到...才...。D. since连词，自从，引导时间状语从句。故选：C。