-- How long do you think it will be ____ the USA recovers from the losses of the financial crisis? -- Perhaps four or five years.
—She looks very happy. She ______ have passed the exam. —I guess so. It’s not difficult after all.
Thank you for all your hard work last week. I don’t think we ______ it without you.
John, look at the time. ___________ you play the piano at such a late hour?
—May I smoke here ? —If you ____, choose a seat in the smoking section.
This cake is very sweet. You _____ a lot of sugar in it.