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 |
Only by imagining and creating ____ a difference.
| A．can make | B．you can make | C．make | D．can you make |
I can’t imagine_____ with such a famous author.
| A．work | B．to work | C．to be working | D．working |
The managers discussed the plan that they would like to see ___ the next year.
| A．carry out | B．carrying out | C．carried out | D．to carry out |
Soon they could see steam _______ from the wet clothes．
| A．rise | B．rising | C．risen | D．be rising |
_____ from the top of the tower, the south foot of the mountain is a sea of trees.
| A．seen | B．seeing | C．Having seen | D．To see |