He has been studying here for three years,by next summer he_.
A. will graduate B. will have graduated C. will be graduated D. will be graduating

2023-05-26



参考答案:B

将来完成时主要表示将来某时将会发生的事情,一般要用表示将来的时间状 语,如:by或before引导的介词词组或before引导的时间状语从句。