—Hi，Mary.Would you like to go to the concert this evening?
—Sorry，Tom.________ tomorrow's lessons，I have no time to go out with you.
| A．Not preparing | B．Not having prepared |
| C．Not to prepare | D．Being not prepared |
________ many times, he still couldn’t understand it.
| A．Told | B．Being told | C．Having been told | D．Having told |
Always read the ______ on the bottle carefully and take the right amount of medicine.
| A．explanations | B．instructions | C．descriptions | D．introductions |
Don't leave matches or cigarettes on the table within the _____ of little children.
| A．hand | B．reach | C．space | D．distance |
She had a computer at home, and her parents desired that she ______ all her work at home.
| A．do | B．does | C．did | D．doing |
Tom was very angry about ________ to Mary’s birthday party.
| A．not inviting | B．being not invited | C．not being invited | D．not to be invited |