________ we clean the classroom at once—No, you________. You ________clean itafter school

Can you show me _______ to use this kind of camera-Sorry, I don’t know, _______.

The restaurant is so popular here. Look, there are somany _____ here.

With Chang’e II launched successfully, China isto send up a manned spaceship to the moon within five or six years.

, go and join your sister cleaningthe yard.” “Why ______ John is sitting there doing nothing.”