Choose the correct word:
1. He swims (like-as) a fish.
2. Your weith isn't the same (like-as) his.
3. Mai is (like-as) beautiful as Nga.
4. We went to (the same, different from) school when we were young.
5. School in the U.S.A are (the same, different from) those in VietNam.
6. Tam and Nam are (the same, different from) height.