1. My parents _____ married for 34 years by 2034.
A) be
B) have been
C) have
D) will have
2. By next week, my brother _____ a vegetarian for four weeks.
A) be
B) have been
C) been
D) will have been
3. By November, Jasim _____ at his new job for nine months.
A) work
B) be working
C) have worked
D) will have worked
4. By 8:00 PM, you _____ for four hours.
A) study
B) be studying
C) have studied