When I talked with my grandma on the phone, she sounded weak, but by the time we ______ up , her voice had been full of life. 
#101651
A
were hanging
B
had hung
C
hung
D
would hang
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Please tell me _____ tomorrow morning.
#104563
A
what are you doing
B
what you are doing
C
what you will be doing
D
what will you be doing
 I know Mr. Brown;we __ to each other at an international conference.
#104419
A
are introduced
B
have been introduced
C
were introduced
D
had been introduced