To go on until yousucceed is what life is ________about

There is little time left, so the chairman asked me to _____my speech to 20 minutes.

I owe you a thank you for all your help— __________

A new study shows older men alack of deep sleep are nearly twice as likely to develop high blood pressure.

I intend to buy a present for my mother’s birthday, ________ at the proper price but of great value.