Question

【题目】So far Billy ________ five Chinese songs. He really feels proud of himself.

A. learns B. learned

C. has learned D. is learning

Answer 1

【答案】C

【解析】句意：到目前为止Billy已经学会了五首汉语歌了，他真的为自己感到骄傲。learns学会，是第三人称单数形式；learned是过去式；has learned是现在完成时态；is learning是现在进行时态。so far是固定短语，到目前为止，常和现在完成时态搭配使用，故应选C。