二、根据句子意思,用括号中所给单词的正确形式填空。
1. For many things,we can only hope for the best,and prepare for the 
worst
.
2. Near the end of the class,my teacher often asks,“Do you have any 
further
questions?”
3. Asking questions is one of the 
easiest
ways to lead you to active learning.
4. The students are 
busier
than usual,because the final exam is coming.
5. He is one of 
the friendliest
students in the class,I think.
6. We prepare to buy a new dress for Lisa,but we don't know the exact 
height
of her.
7. The Yellow River is the second 
longest
river in China.
8. The programme will help make streets much 
safer
.
9. Lucy often helps others. She is a 
helpful
girl.
10. I don't know how 
to make
a model spaceship.