Question

【題目】By the time he graduates from the senior high, he ________ 3500 English words.

A. learns B. will have learned C. has learned D. had learned

Answer 1

【答案】B

【解析】

考查將來完成時(shí)。句意：到他高中畢業(yè)的時(shí)候，他將學(xué)會(huì)3500個(gè)英語單詞。by the time引導(dǎo)的時(shí)間狀語從句，從句一般現(xiàn)在時(shí)，主句用將來完成時(shí)。故B選項(xiàng)正確。