用方框中所给单词的适当形式填空。 essential; own; handwriting; typhoon; however; certain; recent; tour 1. There's a _______ coming. 2. His _______ behavior puzzles me. 3. Chinese _______ is very famous in the world. 4. I am _______ that he will come. 5. Her most _______ quality is kindness. 6. This house is mine. I _______ it. 7. His _______ is the best in our class. 8. _______ cold it is, she always goes swimming.