e got your flat furnished, haven’t you—Yes I someused furniture at the Sunday Market and it was a real bargain

下列各句中，没有语病的一句是(　　)

I bought a nice MP3 yesterday. It’s only＄150.— Oh, really I spent ___________ money than you .Mine is ＄120.

Kitty prefers _______ but Sandy would rather _______.

It is necessary _____ something to protectour environment.