Robert Collier once said, “A single idea---the sudden flash of a thought --- __________be worth a million dollars.”

—I promise that she       get a nice present on her birthday.—It will be a big surprise to her.

.My tutor explained that I ________read lots of different texts that contain different opinions.

—Can I pay the bill by check? —Sorry, sir．But it is the management rules of our hotel that payment     be made in cash．

—Shall I help clean the kitchen, Mum?—Thank you.But you ________ it because I can do it myself.