If I would have listened to those people who told me I couldn’t do it then., today ____ just be Saturday.
A will              B. shall            C. would            D. should

---Sorry, Professor Smith. I didn't finish the assignment yesterday.
---Oh, you      have done it as yesterday was the deadline.

The chief editor demanded  that  the  article ________immediately.

—Can I pay the bill by check?
—Sorry,sir.But it is the management rules of our hotel that payment ____ be made in cash.

Doctors say that exercise is important for health, but it _______ be regular exercise.

But for the snow,  we       earlier.

— You _______ for me this morning. I came over here with Michael in his car.
— Well, why didn’t you let me know earlier?

— Is John coming over this weekend?
— He should, but he _______ not. He seems to be busy these days.

He desired that he ______ the right to vote.

---The research on the new flu virus vaccine is challenging and demanding. Who do you think can do the job?  
---____ my students have a try?