10."extraordinary,extra-official,extracurricular,extra-professional,extra-solar"andsomeotherwordscontainthesameaffix“extra”whichmeans____________.

You have to pay a(n)premium for express delivery. A: extra charge B: extra price C: extra tip D: extra bonus

If demand is price elastic and price decreases, then A: the extra revenue from the extra units sold is exactly offset by the loss in revenue due to the lower price B: more information is necessary to determine what happens to total revenue C: the extra revenue from the extra units sold is less than the loss in revenue from the lower price D: the extra revenue from the extra units sold exceeds the loss in revenue from the lower price

Providing extra information___________________________

Go The Extra Mile

He acts like a professional player. player的定语为 A: professional B: acts

There is an extra charge of 100% for express service.

​There will be an extra charge for any _______ passengers. (addition)‌​‌

extra同义词 A: free B: additional

I was given extra money by the boss.