Section ADirections: In this section, there are 10 incomplete sentences. You are required

Section A

Directions: In this section, there are 10 incomplete sentences. You are required to complete each one by deciding on the most appropriate word or words from the 4 choices marked A , B, C, and D.

I am very sorry______you such a lot of trouble by the delayed shipment.

A．caused

B．causing

C．to have caused

D．to be caused