After they _______ stars in their own country, the Beatles _______ the United States.
#99894
A
had become; toured
B
have become; toured
C
became; toured
D
became; had toured
推荐题目
This is the second time that you ______ the Summer Palace.
#100197
A
visited
B
have visited
C
had visited
D
are visiting
All the essays _____________, the teacher sent the students home.
#102948
A
having written and collected
B
having been written and collected
C
being written and collected
D
to be written and collected