Please open a window to allow the air to __________. 2. I need one __________ to complete my set of Dickens novels. 3. Put fried chicken on the rice and __________ various side dishes. 4. Local authorities have to learn to __________ resources efficiently. 5. She is unstable and her mood __________ between happiness and despair. 6. Any investment __________ an element of risk. 7. I am eager to learn how to ride a __________. 8. Caught in the act, he had no __________ but to confess. 9. He said they were opposed to the presence of __________ forces in the region. 10. Join those two ends of the wire and you’ll make a __________.