Complete the sentences using the Present Perfect or Present Perfect Continuous form of the verbs in brackets.

1. He .............. the environment for over ten years. (study)

2. We ............... hard to build nesting boxes. (work)

3. It for two days. (rain)

4. Phillip ................ (never/buy) anything from a flea market(блошиный рынок) bеfore.

5. Martha ............. (bake) four loaves and she still needs to bake three more. She ............... (bake) bread all morning.

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