11.   Q. Some time ago, you printed a phone number that computer users can call to test the quality of a modem connection.

12.   So before any of her crew enters a storm drain, they first test the quality of the air, making sure there are no noxious gases present.

13.   The health department does not test water quality in Lake Ida because it says the water is already deemed unsafe for swimming.

14.   The inspectors who found fault with the condoms may have been inexperienced in testing the quality of condoms, the spokesman said.

15.   The state has started studying growth rates of fish in this area and will begin testing water quality early next year.

16.   To test the quality of his verse, he read his poems aloud.

17.   We have no machines to test environmental quality.

18.   You can test the quality of the mortar by poking it with a pen knife.

19.   Zygo sells its electro-optical measuring instruments to makers of computer chips, who use the product to test chip quality.

20.   Back on the Chao Phya, teachers show them how to test the quality of water in different stretches of the river.