I / AT/ HEATHROW AIRPORT / TEN / AT / LAST NIGHT / O’CLOCK / ARRIV...

15. - DE THI TRUNG CAP HP3
DE THI TRUNG CAP HP3
15. I / at/ Heathrow airport / ten / at / last night / o’clock / arrive //.a. I arrived at Heathrow airport at ten o’clock last night.b. I arrived at Heathrow airport on ten o’clock last night.c. I arrived at Heathrow airport in ten o’clock last night.Each sentence has one mistake in italic. Choose the best answer to correct it.