They finish their homework at seven o'clock.改为一般疑问句They finish their homework at seven o'clock.改为一般疑问句
问题描述：
They finish their homework at seven o'clock.改为一般疑问句
They finish their homework at seven o'clock.改为一般疑问句
答
Do they finish their homework at seven o'clock?
答
do they finish their homework at seven o'clock?
答
Do they finish their homework at seven o'clock?
方法：实义动词作谓语,变一般疑问句要加助动词DO/ DOES（ 一般现在时）/ DID（ 一般过去时）
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