（ ） when she started complaining.

Three of us will go there, and the rest （ ） to stay here.

Herman’s success is （ ） his hard work and his academic ability.

Most people make such mistakes （ ） in their whole life.

Bob never dreams of （ ） for him to be promoted to the managing position in the company.

Such a skilled tennis player knows how to take_____of his opponent’s (对手) chief weakness.

I’m trying to be more （ ） when I go shopping, and only buying what I really need.

Many young people find it harder to appreciate_____music than pop music.

We’re talking about the piano and the pianist （ ） were in the concert we attended last night.

Yon don’t have the right to blame me _____ being late， for I was busy typing your business invitations.

In the experiment we kept a watchful eye （ ） the developments and recorded every detail.

To save energy, people have to （ ） their electricity consumption.