If she     that Mary would come to see her, she would never have gone to the party.

-- ______ I come to London alone? -- Don’t worry, I ______ be meeting you at the airport.

We suggest that more measures _________ to solve the problem of overpopulation.

–Let’s take a coffee break, shall we?–I wish I ________, but I have a really tight schedule.

Zhanglin was lost in computer games during his last year in high school, otherwise he _____ a student at Beijing University.