Перепишите следующие предложения с придаточных определительных предложений. we need a bag to carry these things in. these are the letters to be answered. the amount to be paid includes the cost of packing. i was the second customer to complain to the restaurant manager about the service.

We need a bag where to carry these things in.
These are the letters that/which are to be answered.
The amount which is to be paid includes the cost of packing.
I was the second customer who complained to the restaurant manager about the service.