填空题 Only after he had failed his oral test ______ (他才逐渐意识到联系的必要性).

【正确答案】 1、did he come to realize the necessity of practice

【答案解析】[解析] 考查倒装结构。only置于句首时，主句谓语要用部分倒装结构。“逐渐意识到”译为come to realize;“……的必要性”可译作the necessity of sth./doing sth.。