I cooked dinner for my parents yesterday (when)

When did I cook dinner for my parents?

№1, стр.47.

1.her son is not an enjineer. he is a  scientist.

2.my father is not a fireman. he is a driver.

3.his grandmother is not a worker. she is a  pensioner.

4.liz and bob are not pupils. they are students.

№1,стр.54.

1.he is a officer.

2.she is a teacher.

3.they are doctors.

4.не is an officer.

5.they are enjineers.

sales assistant: hello, how may i help you? customer: hi! i'm looking for some cheddar cheese. can you please direct me to it? sales assistant: of course. here you go. how much cheese would you like? customer: can i please have one big chunk and some grapes too.sales assistant: certainly. what kind of grapes would you like? customer: i would like some red seedless ones, please. oh, and i would like to buy a loaf of bread, as well.sales assistant: here is our bakery aisle, please choose any type of bread you wish.customer: thanks. i'll have a loaf of granary bread and a couple of bread rolls too.sales assistant: is there anything else i can help you with? customer: yes. i'm also after a new hairdryer and an ipod for christmas.sales assistant: please follow me.customer: thanks for all your help. how much does that come to? sales assistant: £200 altogether. would you like a bag? customer: yes, please. thanks. bye.sales assistant: thank you. bye!