1. It took US about______ hour to go to ______ Hainan Island by ______ plane.
2. This is ______most important question of all.
3. Mike is never late for school, he is always ______first one to arrive.
4. —Where is ______ guide?
    —He’s standing in line to buy ______tickets for us.
5. ______Greens are on______ visit to______ beautiful city in China.
6. June 1st is ______Children’s Day.
7. When she woke up, she found herself in______ hospital.
8. Pass me ______dictionary next to the radio and I also need______ pen to write something.
9. We can’t see ______ sun on a rainy day.
10. ______ China is______ old country with______ long history.