7．Have you got a cloth that you can________(擦)the floor with?

6．The patient is________(稍微)better now.

5．I went to the dinner party at her r________.

4．Could you do me a f________and turn off the lights?

3．Thank you for the i________to your wedding party.

2．In England，turkey is t________eaten on Christmas Day.

1．The disease s________quickly across the country and thousands of people died.

6. 30+10

5.解：过C作AB的垂线，交直线AB于点D，得到Rt△ACD与Rt△BCD．

设BD＝x海里，

在Rt△BCD中，tan∠CBD＝，

∴CD＝x ·tan63.5°．

在Rt△ACD中，AD＝AB+BD＝(60+x)海里，tanA＝，

∴CD＝( 60+x ) ·tan21.3°．　　　

∴x·tan63.5°＝(60+x)·tan21.3°，即 ．

解得，x＝15．

答：轮船继续向东航行15海里，距离小岛C最近

4．81.96