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题目内容
（河北建筑工程学院-建筑学-大学英语1）
The teacher asked the children_____ they_____ the things in the lad that morning .（单选）—4分
A if ,had touched
B where did ,touch
C when ,touch
D when did ,touched
A if ,had touched
B where did ,touch
C when ,touch
D when did ,touched
参考答案
