Put the verbs in brackets into the correct form.(1.5 points)
1.He usually (go) _______________ to school by bike.
2.My father used to (go) _______________ fishing when he was a child.
3.They (live) _______________ here for 8 years.
4.If we (recycle) _______________ more, we will help the Earth.
5. Factories (not dump) _______________ waste into rivers if the government fines them heavily.
6. If people travel to work by bus, there (be) _______________ fewer car fumes.