Question

---May I borrow your book Steve Jobs ?
--- ________ you return it before Friday.

A．If only

B．Unless

C．On condition that

D．Now that

Answer 1

C

試題分析：考查連詞。A但愿；B除非；C條件是；D既然。句意：——我可以向你借《喬布斯》的書嗎？——條件是你在周五之前還。故C正確。