Question

You must apply yourself_______ the study you have to take up.

A．on

B．for

C．to

D．of

Answer 1

C

考查介词。On在某方面；for 为了；to到；of……的。句意：你必须让你自己投入到你不得不从事的学习中去。Apply oneself to sth专心致志于某事，故选C。