Question

1) they ___ in this school since 1919(teach) 2) the dog ___ All through the night (bark)​

Answer 1

Answer:

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Explanation:

1. Have been teaching

2. Had been barking

Answer 2

Answer:

1) They have been teaching in this school since 1919. [ Present Perfect Continuous Tense ]

2) The dog barked all through the night.

[ past simple/ simple past ]

Explanation:

For more info: Simple Present: Sub + Verb(1) + s/es