—Susan, go and join your sister cleaning the yard.—Why ____? John is sitting there doing nothing.
The movie is quite ________, which can be judged from their expression after watching it.
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.