---What’s your impression of the Great Wall?
---Wonderful! Once ____ , it can never be forgotten.
| A．seen | B．seeing | C．being seen | D．saw |
Whether we can finish the task on time or not will _______ the weather.
| A．depend on | B．carry on | C．switch on | D．go on |
One thousand people died in the disaster, two hundred and fifty-five children ____.
| A．were included | B．including | C．include | D．included |
----- What’s that terrible noise?
----- The neighbors ________ for a party.
| A．are preparing | B．prepare | C．have prepared | D．will prepare |
We were going out for a Christmas meal together ____ the accident happened.
| A．unless | B．until | C．while | D．when |
Jack had to call a taxi because the box was _______ heavy to carry all the way home.
| A．too much | B．so much | C．far too | D．so far |