Linda is fifteen ____. She is in Class 1, Grade 9.

—Here you are! Two pounds of meat and a dozen eggs. —Thank you. How much do you ________ for them?

下列各句语境源于电视剧《军师联盟》，其中加框词表达不恰当的一句是（ ）

You look smart in this new jacket. That old one ______ thrown away many years ago.

What about the protection?—Let’s keep the surfacedirt by putting a cover over it.