I think it a great honor ___________ to visit yourcountry

He began to take political science_____ only when he left school

Your job here is only _____, for you will be removed from it when we have a proper post for you．

Are you coming to Alice’s party?—I’m not sure.I _______ go to the concert instead.

The Chinese education system rather than the teachers ______ to answer for the overburden on the students.— I agree. I hope the reform being carried out in our country at present will bring about the ______ results.[ ]