Question

．—Do you think_____     worthwhile to go all the way to Los Angles to buy that computer?
—Well ,I’m going to visit some relatives, too.  

A．it

B．/

C．this

D．that

Answer 1

A

在本句中，it为形式宾语，代替下文的to go all the way to Los Angles to buy that computer。而其他选项不能作形式宾语。