The government would have to act

English as a Second Language English Vocabulary, Grammar and Idioms
1

  1. The government would have to act judiciously more teen-agers smoke if they are not exposed to tobacco advertising than if they are and in a balanced manner to tide over the present crisis in puoltry sector.
    Is the sentence grammatically correct?

  2. Although it rained all week, parts of the highway were flooded.
    Is this a correct sentence?

2

  1. is not correct. I can’t begin to make sense of it.

  2. ‘Although’ does not work there, as it implies that phrase b is contrary to what happened in phrase a.
    This would be plausible:
    Although it rained all week, the highway remained passable and there was no flooding.
    In your svcenario:
    As it rained all week, parts of the highway were flooded.

3

The government would have to act judiciously. More teen-agers smoke if they are not exposed to tobacco advertising than if they are and in a balanced manner to tide over the present crisis in poultry sector.
Does it make any kind of sense now?

Can I replace ‘as’ [color=red]by/with ‘after’?
Which one is correct at the red part?

4

No, this is the part that doesn’t make any sense:
and in a balanced manner to tide over the present crisis in poultry sector.

You could say ‘after it rained all week’ trhough the sentence changes in meaning slightly. It becomes a simple cause and effect statement (A caused B) rather than an explanatory reason for the flooding.