This August will be very precious for graduates by which time they into a university.
A. will be admitted
B. will have admitted
C. have been admitted
D. will have been admitted
网友回答
A. will be admitted
B. will have admitted
C. have been admitted
(答案→)D. will have been admitted
解析：考查时态及语态的用法。主句中will是表示将来时，在从句中有by which time可以看出从句谓语动词应该用将来完成时，又因为they与admit之间是被动关系故选D；将来完成时表示将来某个时间之前已经完成的动作，常与by+将来的时间；这里指八月以前学生已经被大学录取了。一般将来时指将要发生的动作与将来的时间状语连用。