keep ,discover ,examine ,think1、______the jar and the cardboard,If they are all right ,you can begin2、How long may I ____ the story book?3、Air is stronger than I _____4、We have ____ that cardboard can hold the water in.

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keep ,discover ,examine ,think
1、______the jar and the cardboard,If they are all right ,you can begin
2、How long may I ____ the story book?
3、Air is stronger than I _____
4、We have ____ that cardboard can hold the water in.

1、___Examine___the jar and the cardboard,If they are all right ,you can begin
2、How long may I __keep__ the story book?
3、Air is stronger than I __thought___
4、We have _discovered___ that cardboard can hold the water in.