Do you know a spaceship flies at about nineteen kilometers ________ second

He sat on his bed looking at his brother, _______ had his arms crossed and looked angry.

Father often tells me ________ too much time on computer games.

Clearly, development aid together with food _____ the long-term solution to the problem of poverty. [ ]

Hi, Tom. Do you have any idea where Jane is?—She _________ in the classroom. I saw her there writing her composition just now.