There used to be a mountain in our village, at the top of which ________.

Not until I began to work ____ how muchtime I had wasted.

The subjects we have at school_____biology

—- we will take the conditions intocareful consideration ______ you have attached to this contract —- Thanks Wish our futurecooperation pleasant

ook has helped me greatly in my daily communication, especially at work ________ a goodimpression is a must.