— Little Tom broke a window in our class.  — I would rather he            that.

If you ______ firm action to deal with it at once, you wouldn’t suffer heavy losses tomorrow.

—How I wish I had studied harder when I was in senior school! —If you had，you ________ a university student now.

 —Is there a fog in the evening ?—There _____ be . I’ll make a phone call to find it out .

_______ he had not hurt his leg, John would have won the race.