It will cost a lot of time__________I think we shall need it and it will certainly be useful to us more or less

Did you have difficulty finding Ann’s house—Not really. She ______us clear directions and we were able to find it easily.

下列各句中，加线的成语使用恰当的一句是（    ）

I prefer ____ to ____.

The politician has been warned that he would be getting into great trouble ____ stick to his standpoint.