Question

Father won’t allow me to play outside_______ I wash up the dishes.

A．if not

B．if

C．unless

D．because

Answer 1

C

试题分析：句意：除非我洗完碗筷，否则父亲不允许我到外面玩。A. if not如果不；B. if如果；C. unless 除非；D. because因为。词义和句意结合可知选C。