Final answer:
The missing letters in each word are: 'eak' in breakthing, 'ss' in emissions, 'bb' in rubbish, 'nag' in manager, 'ea' in spread, 'ei' in weight. This practice improves vocabulary and spelling skills.
Step-by-step explanation:
The missing letters in each word can be filled in as follows: breakthing, emissions, rubbish, manager, spread, weight. This exercise is part of English vocabulary practice often used for developing word recognition, vocabulary and spelling skills. It involves understanding letter patterns and word structures. The keywords from each word such as break, emissions, rubbish, manager, spread and weight represent different parts of speech.
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