Question

【题目】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】

考查将来完成时。句意：到他高中毕业的时候，他将学会3500个英语单词。by the time引导的时间状语从句，从句一般现在时，主句用将来完成时。故B选项正确。