Activity: Fill in each of the following blanks with a word or expression in its proper form. at regular intervals interval jack up bundle up peer 1. In the budget the chancellor is bound to____ the price of cigarettes. 2. _____ in heavy clothes, the pedestrians walked hurriedly against the piercing cold wind. 3. When no one answered the door, she ____through the window to see if anyone was there. 4. We see each other _____ — usually about once a month. 5. There’s often a long ___ between an author completing a book and it appearing in the shops.