1. What subject do you have on today?

=> What subject do you have today?

2. We drink and told stories at the party.

=> We drink and tell stories at the party.

3. We like sweet when we were young.

=> We liked sweet when we were young.

1. 

- recognise the house

- make cofee

- lift heavy things

- understand what someone says

2. 

guard: the factory

make: friends 

lift: the table

recognise: the face

understand: what you say

3.

a. Mary could do sums at the age of 7.

b. Could you read and write when you were 6?

c. Robots could lift heavy things some years ago.

d. Robots couldn't move easily until recent years.