Though great efforts have been on their study Annie still can’t make any improvements

问题补充：

Though great efforts have been on their study , Annie still can’t make any improvements , which makes her parents greatly .

A. made ; disappointed

B. done ; disappointing

C. taken ; disappointed

D. given ;disappointing

答案：

(答案→)A. made ; disappointed

B. done ; disappointing

C. taken ; disappointed

D. given ;disappointing

解析：考查固定词组。make great efforts to do sth努力做sth; disappointed感到失望的；disappointing令人失望的；句意：尽管Annie已经努力学习了，但是她仍然无法取得进步，这让她的父母感到非常失望。