- English as a Second Language (ESL)
- Grammar
- Age 14+
-
level: Level 5
- English
คำแนะนำของผู้เขียน
Mixed past tenses. Use the negative contraction form.
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Past simple, past perfect simple and past perfect continuous
คำแนะนำของผู้เขียน
Mixed past tenses. Use the negative contraction form.