The statement mentions the cause of family problems and does not deal with all the problems. So, I is not implicit. Also, it is mentioned that money is the cause of family problems. But this does not mean that problems always exist in a family. So, II is also not implicit.
The statement emphasises that quality teachers can help reform society if they are sincere enough in teaching. This implies that quality teachers may or may not be sincere. So, I is not implicit. However, II directly follows from the statement and so it is implicit.
The statement mentions that there is no problem if one comes upto 7 p.m. also. This means that the programme will continue even after 7 p.m. So, I is implicit. Also, it is clearly mentioned that the programme will start at 6 p.m. So, II is not implicit.
The advertisement highlights the fact that fares of X airways are less than train fares. This implies that people would prefer to travel by air rather than by train if they do not have to pay extra for it. So I is implicit. Besides, this feature also reveals that fares of X airways are lower than those of other airlines. So, II is also implicit.
The statement does not mention any quality of the National Times. So, I is not implicit. According to the statement, amongst all newspapers, the narrator reads the National Times. This means that some people read other newspapers. So, II is implicit.