求解：When they were waiting in the room, a voice _________ (boom).还有一道：They were discussing the problem. Suddenly, a voice __________ (boom) out.

When they were oh when they were young 求解：When they were waiting in the room, a voice _________ (boom).还有一道：They were discussing the problem. Suddenly, a voice __________ (boom) out. after they were born 和 when they were born We were happy when they left. They were all wet when they arrived at school.:Were they?Did they? They were singing whenwe were dancing可以用when They were surprised when they hear the news 同义句如题 They __an earthquake when they were traveling in Sichuan province 用when合并句子!They came home.They were wet. 英语短文改错题!When tea and coffee wa first introduced to Europe in 18th century,people thought they were harmful.So the king of Sweden decieded to find out whether this was true or not.It was happened that there were two brothers were in pris They were surprised when they heard the whisper.They were surprised ----- ----- the whisper. They were students when they were in their( )为什么是twenties? They were like olf friends and they were pleased when the plane landed safly 改错 some people hurt themselves when they were watching a sports programme.who were they? They were talking ( ) a film when come ( ) the room Who invented the aeroport?when were they born? they,what,doing,teacher,the,in,came,were,when