The government has to reach an agreement with the opposition party.
Or: The government must reach an agreement with the opposition party.
'Has to' vs ' must' ??
it's different, "must" is mandatory whilst "have to" isn't
Opposing party vs opposition party?
'The government has to reach agreement with the opposition party' with the word 'an' omitted is a correct and acceptable English translation to this sentence. Rejecting it as such is officious, unnecessary and just plain annoying to the users.
Partai oposisi ITU = THAT opposition party?