I saw Bob play the piano at John's party and on that ________ he was simply brilliant.
| A．scene | B．circumstance |
| C．occasion | D．situation |
There is no doubt ____ we will host the 2010 World Expo successfully.
| A．which | B．whether | C．/ | D．that |
It is the experience he had as a boy ______ has formed his present personality.
| A．that | B．what | C．which | D．who |
______ with severe drought in some areas, Chinese government is taking active measures to ensure people’s essential needs.
| A．Facing | B．Faced | C．To face | D．Being faced |
That is the man ____ house the police found the lost computer last week.
| A．in whose | B．in what | C．in that | D．in which |
He found that complex problems, especially those _____ abstract thinking, were best for picking out bright and dull students.
| A．involve | B．involved | C．involving | D．being involved |