4 . 选词填空

benefit from; combine… with…; hang out ; set off; send out; go sightseeing

1. We are supposed to ____ the building ______ surrounding architecture together to form an effective system.
2. We will probably _______ remote -controlled house.
3. Once bitten by insects. this kind of tree ___________ a particular smell.
4. We _______ at 6: 00 this morning, and the roads were empty.
5. I'll be ________ in London at this time next week.
6. I often ________ with my friends in the street on weekends.