答案：坚持和发/
A. would forget
B. forget
C. have forgotten
D. will have forgotten
A. 人民民主专政的国体和人民代表大会制度的政体
B. 共产党领导的多党合作和政治协商制度
C. 民主集中制
D. 民族区域自治制度
A. was asleep
B. will asleep
C. has been asleep
D. slept
解析：解析:Asleep只能放在系动词后面。
A. dying…lying
B. dead…lied
C. death…laying
D. died…lain
A. as
B. that
C. and
D. but
解析：解析:not so/ as…as
A. look
B. to look
C. looks
D. looking
A. will find out
B. find out
C. am finding out
D. have been finding out
解析：解析:时间状语从句和条件状语从句中主句为将来时则从句用一般现在时。解析:find out 查出原因解析:find 发现 look for 寻找
