How引导的疑问句：

2. Dave is going to travel to Paris by plane. How long does it take?
（提问时间长短“多长时间”）

3. How far is it from the post office to the museum?
（提问距离“多远”）

4. How often does Kate swim in the river?
（提问频率“多久一次”）

5. How old is the little boy?
（提问年龄“多大”）

6. How many cows are there?
（提问数量“多少”many后跟可数名词）

7. How much water is there in the bottle?
（提问数量“多少”much后跟不可数名词）

8. How much is the doll?
（提问价钱“多少钱”）

9. How tall is his teacher?
（提问高度“多高”）

10. How was the weather?
（提问程度“怎样”）