Great changes _______ in this city over the past five years

Mr. Wilson, can I ask you some questions about your speech–Certainly, feel ________to ask me.

o many children ____round the table,the food disappeared_______．

The twofootball players seem like enemies on the field but _______ they are good friends.

30．— What’s the trouble with you, Andy? — I want to find another firm. Whatever I do, I can’t ________ the boss now.