When I arrived, Bryan took me to see the houseI would Be staying.
| A． | what | B． | when | C． | where | D． | Which |
---What’s your impression of the Great Wall?
---Wonderful! Once ____ , it can never be forgotten.
| A．seen | B．seeing | C．being seen | D．saw |
____ that you are chosen to be a volunteer at the London Olympic Games, what will you do?
| A．Assumed | B．Assuming | C．To assume | D．To be assumed |
He didn’t regret saying what he did but felt that he ____ it differently.
| A．could express | B．would express | C．could have expressed | D．must have expressed |
If China’s space technology has achieved ____ breakthrough in this field, it really is ____ amazing wonder.
| A．the; an | B．a; an | C．不填; the | D．a; 不填 |
Is it high time that the children _____ go to school ?
| A．will go | B．went | C．would go | D．to go |