Identify the tense of the underlined verb phrase in the sentence.
He had been working all day when he decided to go home.
A. present perfect-progressive
B. past perfect-progressive
C. future perfect-progressive
D. past perfect
E. present progressive

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Modals › ViewDifferentiate between ‘must’ and ‘could’ in terms of their meaning and usage in making deductions.
A. The use of ‘must’ indicates a lower level of certainty in making deductions, while ‘could’ indicates a higher level of certainty or possibility.
B. Both ‘must’ and ‘could’ indicate the same level of certainty in making deductions.
C. The use of ‘must’ and ‘could’ is interchangeable in making deductions.
D. The use of ‘must’ indicates a higher level of certainty in making deductions, while ‘could’ indicates a lower level of certainty or possibility.
Preposition › View
In the sentence ‘The dog is next to the tree’, what is the preposition showing the relationship between?
A. next to
B. under
C. inside
D. behind
Grammar › ViewAfter the physics lesson, the children know that water ____ at 100 degrees C.
A. will boil
B. is boiling
C. boils
D. boil
Grammar › View
If we had gone to Delhi, we ————the Qutb Minar.
A. would see
B. had see
C. would have seen
