Don’t all speak at once! ______ , please.
| A．Each at one time | B．One by one time | C．One for each time | D．One at a time |
Because Rosaher big brother so much, she tries to imitate the way he walks and talks.
| A．looks up to | B．looks down on |
| C．looks out for | D．looks forward to |
Cloning technology canhuman life by creating human organs to replace those which fail to function.
| A．adjust | B．substitute | C．extend | D．Transform |
Having been working for a famous multinational for years, I have considerable knowledge and rich experience in this field.
| A．attained | B．distributed |
| C．grasped | D．Conveyed |
If our city doesn’t start working on the on some open space, soon there won’t be a spot that isn’t covered with a house or shopping center.
| A．division | B．identification |
| C．assumption | D．Preservation |
She has lost only nine games in five matches on the way to the semifinals. Always the perfectionist, she sees room for .
| A．achievement | B．improvement |
| C．entertainment | D．Amusement |