问题描述:
1.look__this book,it's a history A.on B.at
2.what did they teach him____he church?
A.for B .at
3.when____the spring festival start?
A.do B.did
2.what did they teach him____he church?
A.for B .at
3.when____the spring festival start?
A.do B.did
问题解答:
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