I am sorry to (give) __?__you so much trouble.
i am sorry to __you a lot of trouble
I am sorry to have troubled you so much可否用to trouble
i am sorry ___________(trouble)you so much 为什么
i am sorry to()you so much trouble A have given B have been
I’m sorry to _______ you to so much trouble.
I'm sorry to have given you so much trouble.
i am sorry / you so much trouble.and thank you for your help
I am sorry to trouble you
I am sorry to trouble you but..
i am sorry to trouble you -__________
i am sorry to trouble you .( )
I am sorry just to trouble you!