Make sure you also check out our previous quizzes:
Big Quiz 1
Big Quiz 2
Big Quiz 3
Select the Correct Answer
1 – paying for the meal
2 – leaving wallets at home
1 is in the past (see the use of ‘couldn’t’). 2 must happen before 1. For an event that happens (2) before another event in the past (1), we should use the past perfect tense for 2. The answer is ‘had left’.
To learn more, go to http://www.studyandexam.com/past-perfect-tense.html.
Also visit our lesson on Speaking about Experiences.