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МатематикаВопрос:
3 The children ________ (play) on the computer for a long time. Tell them to stop.
Ответ:
Вспомогательные глаголы: have/has + been + Ving
The children have been playing on the computer for a long time. Tell them to stop.
Ответ: The children have been playing on the computer for a long time. Tell them to stop.
Похожие
- 1 Match the words in A to the words in B and use them to complete the sentences. A B 1 toxic a species 2 factory b fumes 3 acid c pollution 4 natural d power 5 soil e habitats 6 plant f waste 7 solar g rain
- 1 ________ is very harmful to the environment.
- 2 A lot of ________ is dumped into this river.
- 3 Chemicals cause ________
- 4 ________ is environmentally friendly.
- 5 Many ________ are in danger of dying out.
- 6 Forest fires cause many animals to lose their ________
- 7 How can I avoid breathing ________ from cars while cycling in the city?
- 2 Complete the sentences with the present perfect continuous. 1 You look tired. ________ (you/work) in the garden all afternoon?
- 2 We ________ (use) solar power for ten years now.
- 4 A lot of animals ________ (lose) their natural habitats recently.
- 3 Complete the sentences by choosing a, b or c. 1 Coral reefs are... a islands. b towns. c ocean communities.
- 2 Coral is... a hard. b soft. c blue.
- 3 Coral polyps are... a huge plants. b sensitive creatures. c bright-coloured algae.
- 4 Coral reefs die because... a algae lose their colour. b people fish them. c the oceans' temperature increases.
