Jane lay on the floor ________(tremble), too ________(scare) to move.
—Look, the absentminded student is holding the book upside________.
—He is much too careless.
—Jack, this is the third time that you have been late this week.
—Sorry, sir, but I was help ________ for 15 minutes on the way here in the traffic jam.
We are now enjoying the cool air in the room. ________ the meantime, the farmers are harvesting crops in the hot sun.
—Do you work in this office?
—No, as a clerk in this office is on vacation, I'm just helping______ here for about a week.
The boss refused to sell the car for ________ he thought was not satisfactory.
