Jerry read the poem again and again until he ______ it by heart.

Jerry read the poem again and again until he ______ it by heart.
A、learned
B、studied
C、bore
D、kept
【正确答案】：A
【题目解析】：杰瑞把这首诗读了一遍又一遍直到把它记住。此题考查词组“learn sth. by heart”，意为“熟记，背诵”。