What they were doing这句话语法错误吗

What they were doing这句话语法错误吗 people often remember what they were doing What are they doing?Are they have lunch?这2句话哪里有问题吗 What are they doing?Are they have a meeting?这句话有错吗?哪儿错了? 以“Most people remember what they were doing when thetsunami What were they doing when the UFO l_____? they,what,doing,teacher,the,in,came,were,when Do you remember what you were doing?关于这句话的的陈述语序语法知识点 what were you doing? 把they remember what they were doing when they heard about th They remenber what they were doing when they herd about the what have you problem 是什么意思? 这句话有语法错误吗?