Question

---Tom is always making so many mistakes in his English exercises!  
--- Yeah. If he ________ more careful, he ________ fewer mistakes.

A．was; will make

B．is; would make

C．were; will make

D．were; would make

Answer 1

D

试题分析：句意：汤姆总是在英语练习中犯那么多的错误！—如果他能更细心一些，他就会犯更少的错误。
表示与现在事实相反的假设，If+主语+动词过去式（be动词用were），主语+would/should/might/could+动词原形。根据题意及句型，故选D。