3 The baby <b>isn't</b> sleeping (not/sleep) when Grandpa <b>arrives</b> (arrive). 4 While he <b>was travelling</b> (travel) on the bus to work, he <b>remembered</b> (remember) that it was his wife's birthday. 5 <b>Are</b> (the children/study) while their nanny <b>prepares</b> (prepare) dinner? 6 While you <b>are</b> (be) out, the postman came and <b>delivers</b> (deliver) these letters.

1. The baby isn't sleeping (not/sleep) when Grandpa arrives (arrive).
2. While he was travelling (travel) on the bus to work, he remembered (remember) that it was his wife's birthday.
3. Are the children studying (the children/study) while their nanny prepares (prepare) dinner?
4. While you are (be) out, the postman came and delivers (deliver) these letters.

Ответ:

1. The baby isn't sleeping (not/sleep) when Grandpa arrives (arrive).
2. While he was travelling (travel) on the bus to work, he remembered (remember) that it was his wife's birthday.
3. Are the children studying (the children/study) while their nanny prepares (prepare) dinner?
4. While you are (be) out, the postman came and delivers (deliver) these letters.