In the sentence 'The leader’s speech was invigorating', what is the most appropriate ANTONYM of the word 'invigorating'?

In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank. Select the most appropriate option to fill in blank number 1.

Select the most appropriate synonym of the given word: PERFIDIOUS

Choose the correct meaning of idiom: Hobson's choice

Select the most appropriate antonym of the given word.

Perfidious

Identify the misspelt word

Spot the correct spelling of a CSF-shunt procedure.

Choose the correct one-word substitute for:

'An official reprimand or strong criticism'.

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The startup scaled so rapidly that its infrastructure could keep pace.

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Rare though the phenomenon is, it can occur -prolonged drought conditions.

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While the proposal appeared pragmatic on paper, its implementation proved complicated than expected.

Find the part of the sentence that contains an error:

That the report failed to address the root causes (1)/ of the community unrest were surprising (2)/ given the exhaustive data (3)/compiled over several months(4).

Find the part of the sentence that contains an error:

What renders the draft legislation particularly contentious is not its proposed realignment of fiscal powers per se, (1)/ but that it presumes, without empirical substantiation, (2)/ a fiscal equivalence among states whose developmental baselines are (3)/incommensurable by any normative metric. (4)

Change the following from active to passive:

Select the sentence containing the homonym of the highlighted word:

The choir began the introit at the priest's signal.