问题
选择题
| — Why are you so happy? — It's ______ my grandma is going to come to see me. |
A. because B. since C. as D. for |
答案
答案：A
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| — Why are you so happy? — It's ______ my grandma is going to come to see me. |
A. because B. since C. as D. for |
答案：A