may i use your pen?I am ---not.I am using it now
may i use your pen?I am ---not.I am using it now
may i use you pen?I'm __you__.I'm using it now.
May I use your pen?
May I use your pen?I'm a _____ you can't .Jack is using it.空
you can not < > my computer because i am using it now 括号里是填B
May I borrow your pen?Sorry,I__(use) it
I am not your
May I use your pen ,please
I may use your pen,__ __?
I am sorry I lost your pen.
when i am not using water,i always turn off the tap 中的use为什么
I am not using是什么时态.