Uncle Wang works in a book shop in the middle of the city. The shop is not far (远) from his home. It is about one kilometer (公里) away. So Uncle Wang seldom (很少) goes to work by bus. He usually goes there by bike, sometimes on foot. It takes (花费) him twenty minutes to get there by bike and forty minutes on foot. His work starts at half past eight in the morning and finishes at a quarter to five in the afternoon.
Last Monday，his bike was broken (坏了). He wanted to walk there. He had breakfast at home. He left(离开) home at ten to eight and he walked to work twenty minutes earlier(更早).
1. What does Uncle Wang do? ( )
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