You can't visit John tomorrow morning. He _______.
A. will be working
B. was working
C. is working
______ Fred gets here, we'll be leaving.
A. In time
By the time
C. On time
At two o'clock tomorrow, she ______ exercising at the gym.
A. are
B. be
C. will be
This time next week, Andrew will be ______ to Canada.
A. fly
B. flew
C. flying