For centuries, people on sea voyages washed their clothes by placing the dirty laundry in a strong cloth bag, then toss it overboard, and let the ship drag the bag for hours.
153.
For centuries, people on sea voyages washed their clothes by placing the dirty laundry in a strong cloth bag, then toss it overboard, and let the ship drag the bag for hours.
A. then toss it overboard, and let
B. then toss them overboard, and they let
C. tossing it overboard, and letting
D. tossing them overboard, and let
E. tossing it overboard, and let
by placing the dirty laundry in a strong cloth bag,. tossing it overboard, and letting the ship drag the bag for hours个人认为it指代的是the dirty laundry,原因有3,首先根据平行+代词指代的倾向性,placing与tossing平行,it优先指代placing的宾语,也就是laundry,其次,如果如你所说it指代bag,那为什么后文不用drag it更为简洁,而是用drag bag又重复了bag呢》》最后就是你所说,bag位于介宾短语中,不倾向于这样的指代。