1) ” Everthing displayed on the shelves ________ to be removed by tomorrow,” the manager instructed.
The answer should be Has.
Had = past tense (not suitable)
Have (Plural form – not suitable – Everything indicates singular)
Having (Continuous form – not suitable)
2)It was thanks to the ________ of a neighbour that the fire which broke out in Mr Ong’s house was discovered before it could spread.
The answer is Vigilance
Using Clue Search
Duty = (Indicates that the neighbour owes a burden of responsibility – which he does not in this case)
Chivalry = (Indicates bravery)
Tenacity = (Indicates determination)
Vigilance = (Indicates Alertness)
The tone of the question does not seem to praise the neighbours bravery nor determination. Instead, alertness seems to fit best in this case. Hence, vigilance would be most suitable in this case.