Those _________ may leave the classroom now.
| A．whohasfinished | B．whohavefinished |
| C．havefinished | D．whomhavefinished |
We will have modern equipment ______ things that are complicated. This will make things simple.
| A．to assist us with | B．assist us to | C．to assist us in | D．assisting us with . |
She was happy to devote herself _________gymnastics.
| A．for | B．about | C．in | D．to |
By the time she_____体操比赛上 at the New York Good Will Games, she_________ a dedicated junior gymnast for eleven years.
| A．competed , have been | B．competes, had been |
| C．will compete, has been | D．competed , had been |
As Polly was riding on the train, she sensed that she was _____ by a tall man in a dark coat.
| A．being stared | B．being watched | C．being attached | D．glanced |
Over the long process of evolution, animals have developed their ______ senses, which makes it possible for them to _____ their environments.
| A．specially; conquer | B．unique; survive |
| C．uniquely; survive | D．special; exist |