Exercise 10. Give the correct form of the verbs in brackets. 4. Our guests (not have) ________________to take off their shoes before they get in. 5. They host many festivals annually; therefore, they can (preserve) ________________the traditions. 6. The soldiers (commemorate) ________________on War Invalids and Martyrs’ Day. Exercise 11. Find the mistake in each sentence and correct it 5. The Khmer should(A) float(B) lanterns; otherwise(C), they are(D) not get good luck. 6. The ancestors had(A) to maintains(B) their traditions by(C) teaching(D) their offspring.