选择正确的英文。 1. 有多少匹马? [ ] A. How many horse are there? B. How many horses are there? 2. 你能看见多少只熊? [ ] A. How many bears can you see? B. How many bears do you have? 3. 有多少只绵羊? [ ] A. How many sheep are there? B. How many goats are there? 4. 你有多少头奶牛? [ ] A. How many cows do you have? B. How much cows do you have?