连词成句。1. a, faster, a, bus, train, than, is (.)
______________________________________________________
2. go, by, to, I, bike, school (.)
______________________________________________________
3. we, to, can, go, how, Beijing (?)
______________________________________________________
4. is, than, train, cheaper, a, plane, a (.)
______________________________________________________1. A train is faster than a bus.
2. I go to school by bike.
3. How can we go to Beijing?
4. A train is cheaper than a plane.