Question

【题目】How long do you suppose it is _______ he arrived here?

A. when B. before

C. after D. since

Answer 1

【答案】B

【解析】试题分析：考查连词辨析。A当…时；在那时；B在…之前；C在…后；D自从，既然；句意：你认为从她到那里到现在有多久了？根据句意说明D正确。