问题

Thoughthe series of books isabittoodear(昂贵),itisworthwhile_____________.

A:to be;bought
B:buying
C:to;buy
D:buying;it;

正确答案是：

同类题型

________ fun it is _______ tricks on those children!

_____ the chapter four times, and Ifinally understand the author’s theory

She’s ____ her sister Gina now.

下列各句中，没有语病的一句是（）