Choose the correct tense: Metals ___ when heated.
Aexpands
Bexpanding
Cexpand
Dexpanded
Explanation
– Scientific facts are expressed using the simple present tense.
– The subject ‘Metals’ is plural, so no ‘s’ is added to the verb.
– Correct: Metals expand when heated.
Exam Relevance
- Topic: Tenses
- Subtopic: Simple Present
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