问题

They can buy the pens _ a very good_.

A:at, price
B:in,price
C:at, cost
D:at, selling

正确答案是：

同类题型

The prize of the game show is $30,000 and an all expenses____ vacation to China[ ]

________ world of wonders, ________ world where anything can happen.

89 He was so tired that as soon as he lay down he fell _______ asleep

____ beautiful flowers!

Though faced with so many difficulties, they are _____ about their future.