Question

You won’t feel happy at school ___ you get on well with your classmates.

A．though

B．when

C．unless

D．because

Answer 1

C

考查連詞。句意為：除非你跟同學們相處和睦，否則你在學校是不會覺得開心的。A. though“盡管，雖然”；B. when“……的時候”；C. unless“除非，否則”；D. because“因為”。結合題意，故選C。