Hoàn thành đoạn văn sau bằng cách chia động từ để điền vào chỗ trống

Tomorrow, students _____ (assemble) in the school playground at 08:00 am, to go to Heritage Village.  They ___ (have) their school picnic.  The bus _____ (arrive) at 08:30 am, sharp.  We ____ (reach) the Heritage Village at around 10:30 am.  On reaching, students _____ (go) around to see various displays.  The staff at the spot _____ (welcome) the students with flowers and sented perfumes.  They _____ (offer) the students snacks.  After they eat their snacks, children _____ (play) in the park.  Around 01:00 pm, all students ____ (assemble) for lunch.  They ____ (sit) in a circle and _____ (sing) songs.  At around 04:00 pm, students ____ (gather) near the bus.  They ____  (board) the bus in a queue.  At around 06:00 pm, they ____ (reach) school.  Their parents ____ (pick) them up from the school.