【C15】A．WhenB．WhileC．AsD．Unless

【C15】A．withB．inC．asD．like

答案解析

【C15】A．neitherB．eitherC．asD．one

答案解析

【C13】A．WhenB．SinceC．AlthoughD．Unless

答案解析

【C15】A．whenB．whoC．thatD．what

答案解析

You’ll have more chances of promotion ______ you work hard.A、sinceB、whileC、asD、once

答案解析

A. once B. whileC. since D. unless

答案解析

A．whenB．whileC．whichD．where

答案解析