Great efforts must be in order to improve your spoken English. A. madeB. triedC. hadD. p

问题补充：

Great efforts must be in order to improve your spoken English.

A. made

B. tried

C. had

D. put

答案：

(答案→)A. made

B. tried

C. had

D. put

解析：make great efforts (努力)是固定搭配。