1.His business has gone off without a _____.(一帆風順) 2. You have to make good use of time. After all, every time _____.(一刻千金) 3. I am happy to know that all have ended in _____ about him.(煙消云散) 4. The _____ of the election just bit the _____.(一敗涂地) 5. His comment on the current affairs always ______ the right _____ on the head.(一針見血)