【2013兰州】Do you know a spaceship flies at about nineteen kilometers _______ second?
Some milk in the cup, and the bread on the table.
-- Who is your English teacher, Helen? -- ____________ is.
This morning I have art lesson, art is easy subject..
My parents ask me _______ in order to make me healthy.
—May I use your dictionary, Lily? —Sure, _______.