while we were reading books ,we ______ a loud noise outsideno one knew what ____ to the old man

来源:学生作业帮助网 编辑:作业帮 时间:2024/06/22 01:59:09

while we were reading books ,we ______ a loud noise outsideno one knew what ____ to the old man
while we were reading books ,we ______ a loud noise outside
no one knew what ____ to the old man

while we were reading books ,we ______ a loud noise outsideno one knew what ____ to the old man
1.heard
2.happened