1、When I (enter),they (sit)around the table and (talk)quietly.2、When I (hear)the noise,I(go)to the door and (hind)behind it.3、Yesterday evening,while people (dance),the roof (collapse)and many people (injure)in the accident.快啊,限时,到十一点前解决

问题描述:

1、When I (enter),they (sit)around the table and (talk)quietly.2、When I (hear)the noise,I
(go)to the door and (hind)behind it.
3、Yesterday evening,while people (dance),the roof (collapse)and many people (injure)in the accident.
快啊,限时,到十一点前解决

改正(were sitting)
1、When I (entered),they (were sitting)around the table and (talking)quietly. 2、When I (heard )the noise,I (went )to the door and (hidd)behind it.
(go)to the door and (hind)behind it.
3、Yesterday evening,while people (were dancing ),the roof (collapsedd)and many people (were injured )in the accident.

1、When I (entered),they (was sitting)around the table and (talking)quietly.2、When I (heard)the noise,I (went) to the door and (hid) behind it.3、Yesterday evening,while people (were dancing),t...