Question

----Jack, is maths difficult to learn in High school?
----Sure. No subject can be learned well __________hard work.

A．without

B．through

C．by

D．with

Answer 1

A

考查介詞的用法。根據對話情景，答語中的意思是：肯定了數學在高中難學，而且補充說明哪門課程都需要刻苦學習才能學好。因為本句是個否定句，所以要用表示否定的介詞without。