1.All that is needed is a continuous supply of the basic necessities of life.
   
    2.After being interviewed for the job, you will be required to take a language test.
   
    3.Nuclear science should be developed to benefit the people rather than harm them.

    4.They usually have less money at the end of the month than they have at the beginning.
   
    5.Helen was much kinder to her youngest child than she was to the others, which, of course, made the others jealous.
   
    6.No matter how frequently performed, the works of Beethoven always attract large audiences.
   
    7.Only under special circumstances are freshmen permitted to take make-up tests.
   
    8.The pressure to compete causes Americans to be energetic, but it also puts them under a constant emotional strain.
   
    9.Your hair wants cutting,. You’d better have it done tomorrow.

10.Other things being equal, a man who expresses himself effectively is sure to succeed more rapidly than a man whose command of language is poor.
   
    11.Homework done on time will lead to better grades.
   
    12.Had it not been for my illness I would have lent him a helping hand.
   
    13.Realizing that he hadn’t enough money and not wanting to borrow from his father, he decided to sell his watch.
   
    14.The fifth generation computers, with artificial intelligence, are being developed and perfected now.
   
    15.Published as it was at such a time, his work attracted much attention.

    16.I have kept that portrait where I can see it every day, as it always reminds me of my university days in London.
   
    17.Believing the earth to be flat, many feared that Columbus would fall off the edge of the earth.
   
    18.As might be expected, the response to the question was very mixed.
   
    19.After the Arab states won independence, great emphasis was laid on expanding education, with girls as well as boys being encouraged to go to school.
   
    20.You see the lightning the instant it happens, but you hear the thunder later.