Q1. [1]
Fill in the blank by using the correct form of the word in the bracket :
When a satellite _____ (launch), the rocket begins by going slowly upwards.
- (a) is launched
- (b) are launched
- (c) have been launched
- (d) were launched
Previously asked in CBSE board exam
2023 2/6/1 Q3 (vi)
Generated by claude-sonnet-4-6 · 2026-06-15 07:14 · grounding rag
Model Answer
(a) is launched
The sentence uses a present tense conditional/temporal clause with a singular subject "a satellite," requiring the passive form is launched.
Explanation
- "When" introduces a present tense time clause, so a past tense (d) is wrong.
- "Satellite" is singular, so "are launched" (b) and "have been launched" (c) are incorrect.
- The passive voice is needed because the satellite receives the action of launching. → is launched is the correct answer.
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