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have to has to
obligation, have to, has to
Level: elementary
Age: 8-12
Type:
Downloads: 7
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while and when
The difference between when and while and how to form sentences by using them
Level: elementary
Age: 8-12
Type:
Downloads: 5
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have to production activity
have to, don�t have to, survival, deserted island
Level: elementary
Age: 9-12
Type:
Downloads: 3
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synonyms
adjectives, synonyms
Level: elementary
Age: 7-11
Type:
Downloads: 12
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zero conditional
zero conditional, if clause, if, science
Level: elementary
Age: 7-12
Type:
Downloads: 6
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synonyms and antonyms
synonyms and antonyms exercises
Level: elementary
Age: 8-12
Type:
Downloads: 8
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the scientific method
Steps of scientific method, three states of matter
Level: intermediate
Age: 8-12
Type:
Downloads: 9
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