Ответ:

1. Sarah didn't cook fish for supper yesterday.

Did Sarah cook fish for supper yesterday?

2. The children were not hungry after the walk in the park.

Were the children hungry after the walk in the park?

3. Alan didn't lose his credit card a week ago.

Did Alan lose his credit card a week ago?

4. The tourists didn't return from the hotel late in the evening.

Did the tourists return from the hotel late in the evening?

3.

1. Martin didn't tell us a word.

2. Did you catch the idea of the project?

3. James didn't forget to buy some fruit for supper.

4. Was it sunny in Prague last week?