Question

Studying in groups is necessary_____ you want to do well in school. A．if B．until C．unless

Studying in groups is necessary_____ you want to do well in school. A．if B．until C．unless D．though

Answer 1

A

试题分析：考查状语从句连接词。句意：分小组学习很有必要，如果你想在学校取得好成绩的话。A如果；B直到；C除非；D尽管。故选A。