50. All that can be eaten _______ eaten up.
A: are being
B: has been
C: had been
D: have been
A: are being
B: has been
C: had been
D: have been
举一反三
- All that can be eaten ___ eaten up. A: have been B: had been C: has been D: are being
- All that can be eaten ____(have) been eaten up.
- Butter and bread ______ their daily food, but the bread and the butter up now. A: is; is eaten B: are; have been eaten C: are; are eaten D: is; have been eaten
- The food has been eaten up.
- All that can be eaten _______ eaten up.