Unit 1 She's a nice teacher Unit 2 He's cool.

Unit 1 London is a big city. Unit 2 It's very old.

Unit 1 Robots will do everything. Unit 2 On Monday I'll go swimming.

Unit 1 Will you take your kite? Unit 2 Will it be hot in Haikou?

Unit 1 I was two then. Unit 2 They were young.

Unit 1 Were you at home yesterday? Unit 2 Was it a big city then ?

Unit 1 I helped Mum. Unit 2 Grandma cooked fish.

Unit 1 They sang beautifully. Unit 2 I took some pictures.

Unit 1 Did he live in New York ? Unit 2 Did you have a nice holiday?

Unit 1 Did you fall off your bike? Unit 2 Sam had lots of chocolates.