When do you have science?—I have science ________Tuesday and Friday.[ ]

Mrs. Smith, please teach me how to draw on the computer today. — Oh, no._______. You have to get familiar with the keyboard first.

How long does it take us to go to your hometown from here? —-It takes us hour or more to go to my hometown bytrain.

When you see some waste paper on the ground, you should _______ and put it in the trash bin.

People usually eat dinner ________. [ ]