__ astronauts cannot go to a baseball game or amovie in orbit , there are many familiar activities that they can still enjoy

It is said that robots can do many things___ humans can’t do ______the control of computers.

Thanks to your help, ________ I would nothave completed the task on time.

Have you ever wondered ______ there are so many natural disasters across the world in 2010?

. — I’m afraid the book I have lent youwon’t be interesting enough.—___