______ is a best-known secret in success that get ready in much of our life and you may make the most of the opportunity．

It’s very kind ____ you to ____ me____ the heavy bag.

How long have you been learning English—About four months.—________! Your English is so good.

I bought a robot _______ have more free time.

Only after they had discussed the matter for several hours _____ a decision. [ ]