tính

tính giá trịn biểu thức

V. Rewrite the following sentences without changing the meaning, 

1. I like walking more than riding a bicycle.

 → I prefer ..... 

2. He drives carelessly.

 → He is.. 

3. That shirt is expensive. 

→ What 

4. We spent two days finding the book.

→ It took

 5. Long is better than anyone in the class. 

→ Long is the

D = 1/5 + 1/25 +...+ 1/3125