It’s time that I ________ my hair cut. It’s the eighth time that I ________ to the barber’s shop.
For her, happiness ________ helping those in trouble.
I suggested that he _____ the manager before he decided.
His failure in the experiment suggested that he ________ his teacher’s proper instructions.
Professor Hawking stepped into the office I knew that there was no hope.
Usually children are allowed to ___________ when they are six years old.