單詞拼寫
     根據(jù)下列各句句意和空白之后的漢語提示詞，在指定區(qū)域的橫線上寫出對應(yīng)單詞的正確的完整形式，每空只寫一詞。
1. The assistant is very friendly to all the ________ (顧客).  
2. I like English best; what is your _______ (最喜歡) subject?              
3. He dived into the water, leaving only his face ________ (裸露)
4. A great celebration was held on his ________ (五十歲) birthday.
5. If you knock into somebody, you should ________ (道歉) to him.
6. Please speak as loud as you can to make yourself ________ (明白).        
7. I think you can sit on this newly bought chair very ________ (舒服).      
8. - This problem is not difficult.  - But that one is even ________ (容易).
9. When I came to the riverside, I found a boy _________ (掙扎) in the water.        
10. The students in our school study very hard, _______ (尤其) those in our class.