We should do what we can ___ the endangered animals.
----Yes,it’s our duty them.
| A．save; to protect | B．save; protect |
| C．to save; protect | D． to save; to protect |
The clothes in this shop are more beautiful than ____ of ______.
| A．ones ,yours | B．those ,you |
| C．those ,yours | D．ones ,you |
The meal mother cooked ______ very delicious.
| A．is tasted | B．tastes |
| C．is being tasted | D．to taste |
It’s ____ difficult problem for the twins that ____ of them can work it out .
| A．so ,neither | B．such a , none |
| C．so a , neither | D．such a ,neither |
It was very cold the day before yesterday._______
| A．So it was | B．It was so |
| C．So was it | D．So it is |
____ unusual news! All of us are surprised at it .
| A．How | B．What an | C．How a | D．What |