When I handed the report to John，he said that George was the person ________.

A．to send B．for sending it

C．to send it to D．for sending it to

It is said in Australia there is more land than the government knows ________.

A．it what to do with B．what to do it with

C．what to do with it D．to do what with it

I like getting up very early in summer.The morning air is so good ________.

A．to be breathed B．to breathe

C．breathing D．being breathed

—Is Bob still performing?

—I'm afraid not.He is said ________ the stage already as he has become an official.

A．to have left B．to leave

C．to have been left D．to be left

The flu is believed ________ by viruses that like to reproduce in the cell inside the human nose and throat.

A．causing B．being caused

C．to be caused D．to have caused

________ the meeting himself gave them a great deal of encouragement.

A．The president will attend

B．The president to attend

C．The president attended

D．The president's attending

—They are quiet，aren't they?

—Yes.They are accustomed ________ at meals.

A．to talk B．to not talk

C．to talking D．to not talking

The news of ________ greatly made us surprised a lot as he was indeed very excellent.

A．not his having elected B．not his being elected

C．his not being elected D．his not having elected

________ the program，they have to stay there for another two weeks.

A．Not completing B．Not completed

C．Not having completed D．Having not completed

The country has already sent up three unmanned spacecraft，the most recent ________ at the end of last March.

A．has been launched B．having been launched

C．being launched D．to be launched