Anchor: The necessary arrangements for this can easily be seen to on the spot, but a more ambitious six- or seven-day trek needs some notice, so it would be best to book with your travel agent and settle the details before you leave home.
Entailed: You should book a trek before you leave home.
Contradiction: The Indians have treks that are arranged on the spot.
Contradiction: I was astounded by their high pay.
Contradiction: Cuddling the students is the purpose.
Contradiction: The two is abandoned.
Contradiction: He should have allowed them to corner the Republican Guards.