“Aha, you’re a chain smoker！” “Only at home. Nobody _______ that but you.”
| A．discovered | B．had discovered |
| C．discovers | D．is discovering |
There is still something we can try _____ those dying animals.
| A．to save | B．saving | C．to be saved | D．being saved |
Every year a great number of foreign tourists pay a visit to _____ we Chinese call Heaven Lake.
| A．where | B．which | C．what | D．that |
----Did you see a child dressed in red pass by?
----Sorry, I _____ the poster on the board without noticing anyone.
| A．have read | B．had read | C．am reading | D．was reading |
The teachers believe ______ punishment is by no means ______ wise choice to help the pupils grow healthily.
| A．/; a | B．the; the | C．a; a | D．the; / |
----Daddy, I want to watch my favorite program I Am a Singer tonight.
----_______. You must finish your homework.
| A．Go ahead | B．That’s great | C．Forget it | D．Why not? |