Complete the sentence, using the correct forms of the Past Simple tense. Type ONLY the full forms of the verbs in brackets without commas. Long ago, if we __ (want) to send a letter, it __ (can) take weeks or even months to arrive.

{ "explanation": "The sentence requires using the past simple tense of the verbs 'want' and 'can'. The past simple of 'want' is 'wanted', and the past simple of 'can' is 'could'. The completed sentence would read: Long ago, if we wanted to send a letter, it could take weeks or even months to arrive. Therefore, the answer should be 'wanted could'", "answer": "wanted could" }