当你与新朋友John遇到Sarah时，你应该介绍说：A. Good morning, Sarah. B. This is Sarah.
There are days in a week. A. six B. eleven C. seven
— What do you have dinner?
Tomatoesmy favourite food. A. is B. are C. am
Amy is 10 old. A. year B. years C. yuan
选出正确的答句，把序号填到问句前的括号里。
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