Can you please help me to answer this..? thanks
1.Mr. Reyes told the restless crowd that everyone had to wait for ____ hour for the guest speaker.
(a, an, the)
2. My father gave me ____ watch before I left for Manila. (these, this, an)
3. The branch manager told his staff to make sure that _____ important documents should be sent to the main office by the end of the day. (a, an, the)
4.The teacher gave the students an exam after a few of them challenged her lecture. ____ a behavior was unacceptable to the teacher. (what, such, theirs)