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

The life of a high school student is usually active, exciting and full of fun, but it ______ be stressful sometimes.

— “May I speak to your manager Mr. Williams at five o’clock tonight?”— “I’m sorry. Mr Williams ________ to a conference by then.”

---He will take you as well.---But I’d rather he ______.

------Did you attend Professor Johnson’s lecture about the evolution of videos and sound devices?------I wish I __________. I __________ a job interview with the UN.