1． 误：We should spend the money on something that will benefit from everyone.
正：We should spend the money on something that will benefit everyone.
析：benefit既可用作及物动词，也可作不及物动词。作及物动词时表示“对……有益；使受益”；作不及物动词时常与介词from连用表示“获益于；受益于”。根据句意benefit在该句中应作及物动词，不与from连用。
2． 误：Average house prices decreased to 8% last year.
正：Average house prices decreased by 8% last year.
