At present, we are studying a total of nine subjects, ________ I think is physics.
| A．of them the most difficult | B．and the most difficult of which |
| C．the most difficult of them | D．the most difficult of which |
--- " ______ he open the door?"
--- "Yes, please."
| A．Shall | B．Will | C．Can | D．Would |
I will certainly be surprised if he ______ to tell them what he knows.
| A．dare | B．will dare | C．dared | D．dares |
_____ you make a little room for me?
| A．Should | B．Could | C．May | D．Must |
I am told that her father is in London and ______ a dry-goods store.
| A．has kept | B．kept | C．keeps | D．had kept |
He ______ English for six years by the time he takes his examination.
| A．was studying | B．would have been studying |
| C．had been studying | D．will have been studying |