Qing Dynasty ______for more than 200 years.
#100238
A
existed
B
has existed
C
was existed
D
has been existed
推荐题目
Why did you just sit and watch? You _______ me.
#104478
A
could help
B
should help
C
could have helped
D
must have helped
 Since last year I____ him only once.
#103740
A
have seen
B
have been seeing
C
see
D
was seeing