Question

【题目】Daniel thinks _______ before he works. How ______ he is!

A. carful; carefullyB. careful; careful

C. carefully; carefullyD. carefully; careful

Answer 1

【答案】D

【解析】

句意：Daniel在他开始工作之前认真地思考了，他是多么认真啊！第一个空用来修饰动词think，所以用副词形式，即carefully; 第二个空是主系表结构，所以用形容词作表语，故用careful, 故选D。