389. In June of 1989, LACE w:st="on">LACENAME w:st="on">PrincetonLACENAME> LACETYPE w:st="on">TownshipLACETYPE>LACE> approved a developer’s plans to build 300 houses on a large portion of the 210-acre site of the Battle of Princeton, one of only eight Revolutionary War battlefields that had remained undeveloped.
(A) one of only eight Revolutionary War battlefields that had remained undeveloped
(B) one of eight of the only Revolutionary War battlefields that have remained undeveloped
(C) one of the only eight undeveloped Revolutionary War battlefields that remains
(D) only one of eight Revolutionary War battlefields to remain undeveloped（A）
(E) only one of the eight remaining undeveloped Revolutionary War battlefields
Q1：请问大家上面A的remain是不是因为that修饰battlefields所以后面remain要用复数形式作battlefields的谓语？跟下面的用法一样？
Q2：上面A的had remained 改成remianed可以吗？哪里可以看出要用过去完成时啊？
379. In good years, the patchwork of green fields that surround the San Joaquin Valley town bustles with farm workers, many of them in the area just for the season.
(A) surround the LACE w:st="on">LACENAME w:st="on">San JoaquinLACENAME> LACETYPE w:st="on">Valley town bustles with farm workers, many of them
(B) surrounds the San Joaquin Valley town bustles with farm workers, many of whom are
(C) surround the San Joaquin Valley town bustles with farm workers, many of who are
(D) surround the San Joaquin Valley town bustle with farm workers, many of which（A）
(E) surrounds the San Joaquin Valley town bustles with farm workers, many are
谢谢大家！ | 
