It is said that sixty percent of all energy ________ in the world today is being lost as waste heat.
| A．produced | B．producing |
| C．to produce | D．having produced |
Michael never dreamt of ___ for him to be sent abroad very soon.
| A．being a chance | B．there’s a chance |
| C．there to be a chance | D．there being a chance |
_____ of danger in the street at night, she had to go home, with a friend ____ her.
| A．Warning, following | B．Having warned, following |
| C．Having been warned, following | D．Warned, followed |
____ at a college or university in the USA, Chinese and other international students must demonstrate a strong ability in spoken and written English.
| A．Having been accepted | B．To be accepted | C．Being accepted | D．Accepted |
With a lot of difficult problems ____, the manager felt worried all the time.
| A．settled | B．to be settled | C．settling | D．to settle |
As we all know, it was _____ that resulted in the terrible car accident.
| A．because of her carelessness | B．her being careless |
| C．because she was careless | D．she was so careless |