Let's Save Earth¶
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No.1:
- You can help save Earth.
- You can use bags again.
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No.2:
- You can help save Earth.
- You can sort your trash.
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No.3:
- You can help save Earth.
- You can turn off the lights.
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No.4:
- You can help save Earth.
- You can turn off the water.
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No.5:
- You can help save Earth.
- You can take the bus.
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No.6:
- You can help save Earth.
- You can ride your bike.
- You can walk.
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No.7:
- You can pick up trash.
- You can help save Earth.
1. Can / Cannot¶
语法
- 肯定: I / you / we / they / he / she / it + can
- 否定: I / you / we / they / he / she / it + cannot
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Example 1:
- I can read.
- You cannot jump.
- We can sing.
- They cannot eat.
- He can run.
- She cannot cook.
- It can fly.
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Example 2:
- We can skip.
- I cannot skate.
- You can dance.
- He cannot climb.
- They can drive.
- She cannot shout.
- It can write.
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Example 3:
- A fish cannot talk, but it can swim.
- A bird can fly, but it cannot jump.
- A monkey cannot fly, but it can climb trees.
- A chicken can walk, but it cannot write.
- A cat can eat, but it cannot read.
- A dog cannot draw, but it can run.