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
The manager was concerned to hear that two of his trusted workers ______. 
#102158
A
will leave
B
are leaving
C
have left
D
were leaving
When the old man ______ to walk back to his house, the sun       itself behind the mountain. 
#101758
A
started; had already hidden
B
had started ;had already hidden
C
had started; was hiding
D
was starting; hid