.--- He has to finish the experiment today. He must be in the lab,____?---That s quite possible.
The __________look on his face suggested that he _________________so.
The students each _______________their own e-mail address.
___Do you mind if I keep pets in this building? ___ ___________________
John received an invitation to dinner, and with his work __________________.he gladly accepted it .
She _________play a joke on him in case he becomes angry