连词成句。 1. down, go, street, the, straight ___________________________________________ 2. can, post office, I, stamps, buy, the, at ___________________________________________ 3. writing, my, I, a, father, letter, to, am ___________________________________________ 4. stamp, put, do, where, you, the ___________________________________________ 5. is, hotel, a, this, shop, the, in ___________________________________________