作业帮They havn't decided when---for shanghaiA to be leaving B to leave C leaving D leave
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/12 16:58:40
They havn't decided when---for shanghaiA to be leaving B to leave C leaving D leave
They havn't decided when---for shanghai
A to be leaving B to leave C leaving D leave
They havn't decided when---for shanghaiA to be leaving B to leave C leaving D leave
B 固定搭配 decide to do
B 疑问词+to do