The government should protect the old valuable buildings ____ they are not in harmony with the modern ones nearby．
| A．even though | B．as if |
| C．even so | D．now that |
Cats and tigers are animals of the cat family (猫科动物), so cats __________ tigers in many ways.
| A．are similar to |
| B．are similar from |
| C．are different from |
| D．are different to |
The visitors you referred to __________ looking forward to __________ around our school.
| A．being ； be shown |
| B．being ； showing |
| C．are ； showing |
| D．are ；being shown |
Was it in 1969 __________ the American astronaut succeeded __________ landing on the moon?
| A．when；on |
| B．that；on |
| C．when；in |
| D．that；in |
I used to love that film __________ I was a child, but I don't feel it that way any more.
| A．once |
| B．when |
| C．since |
| D．although |
—How do you like the roast duck?
—It __________ good.
| A．turns |
| B．tastes |
| C．feels |
| D．keeps |