Exercise 40.1: Past simple or present perfect

Please decide if each sentence is correct or incorrect. Select Correct if it is OK or Incorrect if it should be changed

Example: He has not done his homework yet.
Answer: Correct.

1. I was so worried that I am not sleeping for three days.

Correct Incorrent

2. I worked in a hotel before, so it is easy for me to understand.

Correct Incorrent

3. John has promised to take me to the travel agency today.

Correct Incorrent

4. I went to Saskatchewan twice last year.

Correct Incorrent

5. I've eaten octopus. It's good.

Correct Incorrent

Unit 40