A、 starting
B、 to start
C、 have started
D、 was starting
答案：D
解析：解析:what were you doing提问的是过去进行时。
A、 starting
B、 to start
C、 have started
D、 was starting
答案：D
解析：解析:what were you doing提问的是过去进行时。
A. 社会发展的具体道路具有多样性
B. 社会发展的方向根本上取决于统治阶级的意志
C. 社会发展无客观规律可言
D. 这是违背社会发展规律的
A. No sooner it grew dark than
B. Hardly it grew dark when
C. It was not until dark that
D. Scarcely it grew dark when
解析：解析:no sonner than=as soon as 一……就……解析:scarcely when=as soon as解析:hardly when=as soon as
A. when
B. where
C. while
D. because
解析：解析:when (当……时候)解析:where (在哪儿)解析:while (当……时候;相反)解析:because (因为)
A. lying dead
B. lying death
C. laying dead
D. laying death
A. bad
B. worse
C. the worst
D. bad of all
解析：解析:suffer from 遭受……罪
A. had he entered
B. he had entered
C. he entered
D. he was entered
