---He was nearly killed by a car once.
---Oh, when was _____ exactly?
---It was in 2007 _____ he was riding a bike on the drive-way.
| A．this; that | B．that; when | C．that; that | D．this; when |
The problem is _____ will go.
| A．that | B．when | C．who | D．whoever |
Is this _____ ?
| A．you are looking for | B．that you are looking for |
| C．what are you looking for | D．what you are looking for |
He _____ himself in Shanghai.
| A．lost | B．missed | C．losing | D．missing |
The student all the teachers were proud was accepted by Beijing University last year.
A．in  whom |
B．of whom | C．on whom | D．for whom |
It is surprising that little boy should have much knowledge of science.
| A．so, so | B．such a, such | C．so a, such | D．such a, so |