_________ it takes many years to gain the skills of anexpert

I’d like to invite you to my birthday party this evening.—Thanks, but ____ I’ll have time I’m not sure at the moment.

Li Ming is _______ of all in my class.

Everybody should study hard. No one can _______ us _______ a good future.

－Thank you for your coffee.－You are so kind to say so, but you _______ it at all