新版外语教学与研究出版社出版的新标准英语(New Standard English)小学四年级下册(3B）电子课本和录音下载。
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 chocolate.
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