We have entered into an age _______ dreams have the best chance of coming true.

He has the _____ of an athlete: he really goes all out to win.

__________ the convenience of digital payment, many senior citizens started to use smart phones.

I can meet you at eight o'clock; _____ you can call for me.

---You could always put the decision off a little bit longer.

---_____ If I leave it much longer I might miss my chance.