－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

________ the distance was too long and the time was short, we decided not to drive to Florida．

A．Discovering

B．To discover

C．To have discovered

D．Discovered

Who could have imagined such a sweet-tempered girl as Jane ________ such a thing!

A．doing

B．to do

C．will do

D．does

She didn’t remember ________ him before．

A．having met

B．have met

C．to meet

D．to having met

They would not allow him ________ across the enemy line．

A．to risk going

B．risking to go

C．for risk to go

D．risk going

The squirrel was lucky that it just missed ________．

A．catching

B．to be caught

C．being caught

D．to catch

I can’t imagine ________ that with them．

A．do

B．to do

C．being done

D．doing

We shouldn’t spend our money testing so many people, most of ________ are healthy．

A．that

B．which

C．what

D．whom

John received an invitation to dinner, and with his work ________, he gladly accepted it．

A．finished

B．finishing

C．having finished

D．was finished

The managing director was to ________ the accident, although it was not his fault．

A．be blamed for

B．be blamed on

C．blame for

D．blame on