He said he （后悔） buying that book because his father had already bought one for him.
These （fisherman） homes are no longer in the boats because of the government's no fishing law on Yangtze River.
Put on your T﹣shirt and shorts. It's （hot） than yesterday.
You'd better ask other witnesses. I'm （certain） if the suspect was at the scene of the crime.
The managers of the big company have been used to （deal） with problems online.