The moment the 28th Olympic Games _____ open, the whole world cheered.
#100014
A
declared
B
have been declared
C
have declared
D
were declared
推荐题目
By the time Jack returned home from England, his son __________from college. 
#101958
A
graduated
B
has graduated
C
had been graduating
D
had graduated
The teacher said that Columbus _______America in 1492.
#102954
A
discovered
B
found
C
had discovered
D
had found