Question

. --- My son is addicted to drugs. He isn’t hopeless, is he?
--- Yes, ______ he mends his way and starts all over.

A．if

B．when

C．even if

D．unless

Answer 1

D

連詞考查題。if“如果” when“當…時候” even if“即使” unless“除非”。根據句意“除非你兒子改過自新，要不然他是無可救藥的。”所以答案為D。