Can you explain ________ the sun goes down in the west?
| A．why is it that | B．why it is that | C．how it is that | D．how is it that |
Mum likes this old house in downtown better than the huge one in the country, but it costs almost .
| A．twice as much | B．twice as many |
| C．twice so much | D．twice so many |
Is the school you visited last week large ?
| A．that | B．where | C．in which | D．the one |
---Where did you find our chemistry teacher?
---It was in the lab he was doing his experiment.
| A．that | B．where | C．which | D．in which |
There a lack of money, we had to put off building this special school.
| A．was | B．is | C．be | D．being |
The results of the medical checkup suggested that my father in poor health, so the doctor suggested that he smoking and take more exercise.
| A．was; gave up | B．be; should give up |
| C．should be; gave up | D．was; give up |