.---You may find the key to the maths problem on page 107 .
---Ah, it’s so simple . I wonder why I of that .
| A．hadn’t thought | B．haven’t thought | C．didn’t think | D．wasn’t thinking |
Some pre-school children go to a day-care center, ___ ___ they learn simple games and songs.
| A．then | B．there |
| C．while | D．where |
After graduation she reached a point in her career ___ ___ she had to decide what to do.
| A．that | B．what |
| C．which | D．where |
He was educated at the local high school, ___ ___ he went on to Beijing University.
| A．after which | B．after that |
| C．in which | D．in that |
We shouldn’t spent our money testing so many people, most of ___ __ are healthy.
| A．that | B．which |
| C．what | D．whom |
Last week, only two people came to look at the house, ___ ___ wanted to buy it.
| A．none of them | B．both of them |
| C．none of whom | D．neither of whom |