15.—Will you go to the party tomorrow, Xiao Hai? —No, ____ I was invited to.
All is needed is a Supply of oil.
--When _________ the training course begin? --Next Monday.
I think you’d better _____ your spare time better.
Since the able person, John, is in ______ charge of the matter, we’re sure that the matter is under _____ control now.
I am too tired to go there. __________, it’s getting dark.