I don’t know much about computer.—I don’t know, ________. Let’s go and ask for help.

Have you ever heard the song called “When I am old!”–_________.I am going to listen to it sometime next Sunday.

new graduate, he doesn’tknow_______it takes to start a business here.

I ________the dog ________a walk every day.

Many questions ________ at the meeting, but he answered none.