—Why do you like dogs?
—________ they are very friendly.
| A．So | B．But |
| C．Because | D．And |
I feel so tired, because there is________ homework to do and it’s ________hot today.
| A．too many; too much | B．too much; much too |
| C．too many; many too | D．much too; too many |
He has stayed there for _________,but ________he likes to stay at home.
| A．sometime; sometimes | B．sometime; some time |
| C．some time ; sometimes | D．some time; some times |
Every year, more than 70.000,000 sharks____for their fins.
| A．were killed |
| B．have killed |
| C．are killed |
| D．will kill |
The mountain is so high that its top snow all the year round.
| A．is covered with |
| B．is filled with |
| C．is made of |
| D．is used by |
Don’t throw away the waste paper. It needs so that it can be reused.
| A．to destroy |
| B．destroying |
| C．to collect |
| D．colleting |