Is there a discount _____ computers in your shop? I plan to buy _____.
I _____ the mouse for 18 yuan in the supermarket. A. paid B. cost C. Spent
We usually _____ hello to each other A. tell B. say C. speak
--- Would you mind closing the door? It’s really too cold. --- _________________.
_____he is only 8 years old,he knows more about science than his father.
The number of tigers in Asia________ getting smaller and smaller and a large number of people_________ trying to protect them.