4 Complete the sentences with the words in brackets. Use the past perfect simple or past perfect continuous. 1 I (never/snorkel) before Mia took me last year.
2 Clara was annoyed because the book she'd ordered (not/ arrive).
3 How long (you/play) the guitar before we met?
4 By the time the shops opened, (they/queue) for nearly an hour.
5 I looked for my bag, but (I forgot) where I'd put it.
6 Greg was tired last night because (he/ play) basketball.
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Explanation: The past perfect simple is used to talk about an action that happened before a specific point in the past (in this case, last year). So, before Mia took me, I had never snorkelled.
2. Clara was annoyed because the book she had ordered hadn't arrived.
Explanation: The past perfect simple is used to talk about an action that happened before another action in the past. In this case, the book not arriving happened before Clara's feeling of annoyance.
3. How long had you been playing the guitar before we met?
Explanation: The past perfect continuous is used to talk about the duration of an activity before another action in the past. In this case, the person playing the guitar started before the meeting.
4. By the time the shops opened, they had been queuing for nearly an hour.
Explanation: The past perfect continuous is used to talk about the duration of an action before another action in the past. In this case, the people had been queuing (waiting in line) for almost an hour before the shops opened.
5. I looked for my bag, but I forgot where I had put it.
Explanation: The past perfect simple is used to talk about an action that happened before another action in the past. In this case, forgetting where the bag was placed happened before the action of looking for it.
6. Greg was tired last night because he had been playing basketball.
Explanation: The past perfect continuous is used to talk about the duration of an activity before another action in the past. In this case, Greg had been playing basketball, and as a result, he felt tired last night.