1.Did he send a letter to his penpal last week?
Yes,he did /No,he didn't.
2.Did she teach us English last year?
Yes ,she did/No,she didn't.
3.Did they do their homework carefully?
Yes,they did/No,they didn't.
4.Did the Robinsons buy a lot of souvenirs?
Yes,they did/No,they didn't.
5.Did tourist eat seafood at the famous restaurant?
Yes, they did/No, they didn't.
6.Did the teacher give her students a lot of homeworks?
Yes,she did/No,she didn't.
7.Did his uncle take him to see Cham temple?
Yes,he did/No,he didn't.