---Shall we go out for a walk?--- Sorry. This is not the right ____ to invite me. I am too tired to walk.
There is a crowd of people in front of the house over there. What do you suppose _____ there?
I don’t like _____ speaking ill of each other.
The electricity ____, the light went out.
The subjects we have at school _____biology.
The manager discussed the plan that they would like to see _____ the next year.