根据汉语提示，用单词的正确形式填空，每空一词。

1. Rose went to the seaside and enjoyed ________ (她) the day before yesterday.      

2. My sister studies hard, she often finishes her homework ________ ( 容易).            

3. As we know, ________ (吸烟) is a bad habit, it’s not good for our health.           

4. I like lots of vegetables, such as cabbages, carrots and ________ (西红柿).         

5. Many Chinese students have come to realize the ________ (重要) of learning English.   

宫内节育器的避孕原理是

A．抑制排卵过程

B．抑制受精卵着床

C．抑制性激素分泌

D．影响精子运行

E．改变卵子运行方向