根据中文提示，选择英文句子，把序号填在括号里。
1. 你在那儿做什么？
[     ]
A. What are you doing there?   
B. What are you doing here?
2. 他们正在吃蔬菜吗?
[     ]
A. Are they eating the vegetable?   
B. Are they eating carrots?
3. 他们喜欢甜食。
[     ]
A. They like salty food.   
B. They like sweet food.
4. 请对我做一个实验。
[     ]
A. Do an experiment on me, please.   
B. They are doing an experiment.

参考答案：

A

根据中文提示，选择英文句子，把序号填在括号里。
1. 你在那儿做什么？
[     ]
A. What are you doing there?   
B. What are you doing here?
2. 他们正在吃蔬菜吗?
[     ]
A. Are they eating the vegetable?   
B. Are they eating carrots?
3. 他们喜欢甜食。
[     ]
A. They like salty food.   
B. They like sweet food.
4. 请对我做一个实验。
[     ]
A. Do an experiment on me, please.   
B. They are doing an experiment.

参考答案：

A