—Jack, this is the third time that you have been late this week. —Sorry, sir, but I was ____ for 15 minutes on the way here in the traffic jam.
It has been a long time for human to make _____ to reach the moon.
—Hi, Tom. Any idea where Jane is? —She_______in the classroom. I saw her there just now.
The boy_______on the ground_______that he_______the book on the table.
You must apologize_______your mother_______your rudeness.
—Is John coming by train? —He should, but he_______not. He likes driving his car.