what提问时谓语用单数还是复数?对The students has cleaned the classroonm.提问,是What has been done by the students?还是What have been cleaned by the students?

来源:学生作业帮助网 编辑:作业帮 时间:2024/09/17 18:40:49
xՑN@_ey疮nbA M1B8XZ.*cw= n[ QoTɤ'Mh71O>yy]& 6OL T %`FE0::9(s2(:@jNd `Ao‚\-n9! 2 5>6$$.cG(e5ԊOۦ $Y1h/fM v "K̷k2%-;}xs7?kf˨ґVI: 8[܏\v0]aX^