You can eat ________ in my restaurant. That's to say, you need not ________ for it.

You can eat ________ in my restaurant. That's to say, you need not ________ for it.

A.free, cost

B.freely, cost

C.free, pay

D.freely, pay

答案及解析： C

解析：

导解：在句中free意为“免费”，pay for…为固定搭配．