Question

【題目】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：到目前為止Billy已經(jīng)學(xué)會(huì)了五首漢語(yǔ)歌了，他真的為自己感到驕傲。learns學(xué)會(huì)，是第三人稱單數(shù)形式；learned是過(guò)去式；has learned是現(xiàn)在完成時(shí)態(tài)；is learning是現(xiàn)在進(jìn)行時(shí)態(tài)。so far是固定短語(yǔ)，到目前為止，常和現(xiàn)在完成時(shí)態(tài)搭配使用，故應(yīng)選C。