Two Cheese Linguine

1 7oz Package linguine
2 Tablespoon butter or margarine
3 Tablespoon flour
1/4 Teaspoon salt
1/8 Teaspoon pepper
1 1/2 Cups milk
3/4 Cup shredded mozzarella cheese
1/4 Cup shredded Parmesan cheese
2 Tablespoons lemon juice

Cook linguine according to package directions.  Meanwhile in a skillet over low heat, melt butter.  Stir in flour, salt and pepper until smooth.  Gradually stir in milk.  Bring to a boil;  boil and stir for 2 minutes or until thickened.  Remove from the heat.  Combine cheeses; toss with lemon juice.  Add to the sauce stir until cheese begins to melt.  Drain linguine; add the cheese sauce and toss to coat.