Sentence Correction

1. I am tired as I am working since 7 O’clock in the morning.
A. I was working
B. I have been working
C. I had been working
D. I will be working
Answer:  B
2. When it was morning they decided to put at an inn.
A. put out in
B. put off at
C. put at
D. put up at
Answer: D
3. Jeans was not permitted in out college.
A. were
B. had
C. will
D. have
Answer: A
4. He suggested that, we should be bound by