—Liu Xuan, did you see the Denmark’s famed “Little Mermaid” sculpture in Shanghai Expo?—No, I didn’t. I _______ it twice in Denmark.
#102917
A
have seen
B
were seeing
C
had seen
D
saw
推荐题目
His failure in the experiment suggested that he ________ his teacher’s proper instructions.
#101852
A
should not have followed
B
should not follow
C
mustn’t have followed
D
hadn’t followed
 Oh, much smoke here! Somebody ________ the window, please.
#99446
A
opens
B
open
C
shall open
D
will open
—Such a mistake could have been avoided. —Unfortunately, he ________ the mistake again and again. 
#104785
A
repeated
B
would repeat
C
had repeated
D
would have repeated