The underlying physica1 principles that control the midair gyrations of divers and gymnasts are the same as the body orientation controlling astronauts in a weightless environment

It may someday be worthwhile to try to recover uranium from seawater, but at present this process is prohibitively expensive

Having laid the magazine on the desk, she went out the door.

A 1972 agreement between Canada and the United States reduced the amount of phosphates that municipalities had been allowed to dump into the Great Lakes.

The judge ruled that the evidence was inadmissible on the grounds that it was not___to the issue at hand

Trisha could not solve the problem at all and was at her wit’s

ending.

It was us who had left before he arrived.

The MP rose up to say that, in her opinion, she thought the Women's Reservation Bill should be passed on unanimously.

Since the advent of cable television, at the beginning of this decade, the entertainment industry took a giant stride forward in our country.

His mother made great sacrifices to educate him, moving house or three occasions, and severing the  thread on her loom's shuttle whenever Mencius  neglected his lesson to make him understand the need to persevere.