Smith was overweight so the doctor urged that not only have less fat and meat but also h

问题补充：

Smith was overweight, so the doctor urged that not only have less fat and meat,but also he .

A. should he; take exercise

B. must he; takes exercises

C. he can; does some exercises

D. he ought to; do some practice

答案：

(答案→)A. should he; take exercise

B. must he; takes exercises

C. he can; does some exercises

D. he ought to; do some practice

解析：not only...but also...引导两个分句时，前一个分句要部分倒装。urge后接宾语从句时，从句谓语动词用虚拟语气形式，即should＋动词原形，should可以省略。