ทดสอบ Past Tense

Question 1 (1 Points)
I had been practicing the piano when my friend arrived.
    

Question 2 (1 Points)
She was cooking dinner when I arrived at her house.
    

Question 3 (1 Points)
By the time I called him, he had already left for work.
    

Question 4 (1 Points)
We had been planning the trip for months before we left.
    

Question 5 (1 Points)
We had finished eating by the time she arrived.
    

Question 6 (1 Points)
By the time we reached the restaurant the table had already been reserved.
    

Question 7 (1 Points)
I had been writing emails when I received an important message.
    

Question 8 (1 Points)
By the time we reached the station the train had already left.
    

Question 9 (1 Points)
I had been looking for my keys when I found them in my pocket.
    

Question 10 (1 Points)
They were working on the project when the boss came in.
    

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