you bought the newly-produced equipment on display —– Not yet, for I still prefer ______ at my home.

John went to the hospital alone.If he ________ me about it, I would have gone with him.

I wonder why he has been acting sostrangely these days．—Recent pressure at work may ____ hisbehavior．

The building there ______________ twenty- five floors.

He made a promise ______ he would help me.