will he come back on Sunday?I don't know.(合并为一句)
will he come back on Sunday?I don't know.(合并为一句)
When will they come here ? I really don't know .(合并为一句)
I don‘t know how soon he will come back
I don't know when he _(come)back.when he _(come)back,I will
I don't know it.What was he doing last night?(合并为一句) I don't
How did she come here yesterday?I don't know.(合并为一句)
I don't know when he _(come)back.
I don't know if he will ___(come)back.If he___(come)please t
I don't know .when did he go there yesterday?合并为一句
把复合句改成简单句:1.i don't know when i will come back.→i don't know
I don’t know when it is that he will come back.
I don't know when I will come back改为同义句