Present perfect, already, yet

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คำแนะนำของผู้เขียน

Correct

สำรวจแผ่นงาน

How far, How often, What time

Grammar - ESL

Complete the exercises.

Lesson 1- present simple

Grammar - ESL

Tìm và sửa lỗi sai

Present Simple

Grammar - ESL

English as a second language 
Present Simple exercices

Present Simple Tense

Grammar - ESL

English as a second language 
Two exercises to practise positive, negative and question form of present simple tense