He isn’t that hard-working. So he has problems English.A. to learnB. learnsC. learningD.

问题补充：

He isn’t that hard-working. So he has problems English.

A. to learn

B. learns

C. learning

D. learned

答案：

A. to learn

B. learns

(答案→)C. learning

D. learned

解析：

试题分析: 句意：他学习不太那努力。所以他学习英语有问题。 have problem 〔in 〕doing sth做某事有问题，故选C。