Question

【题目】As teenagers, it is not until we are able to face difficulties bravely we are mature enough.

A. which B. when C. that D. whether

Answer 1

【答案】C

【解析】试题分析：考查强调句型。It is …….that……强调句，not until直到…….才…….句意：作为青年人，只有当我们能够去勇敢地面对困难时，我们才会足够成熟。故选C。