四、 Complete the passage with the best answers. Last summer, I went to Hainan with my family. The 1 was pleasant! The sky was blue, more than I could describe; the sea was blue and bright, more than I could believe. 2 by the sea is just like being in the oil painting! We sailed to 3 island called Xidao. I swam there. Swimming in the sea is quite 4 from that in a pool. Bedsides swimming, we also had a good meal there. We ate a lot of seafood. I really like Hainan, a place of blue and 5 .