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Nuclear energy may be dangerous if                          

         from the moon, our earth, with water          seven percent of its surface, appears as a “blue ball”.

Though ________ money, his parents managed to send him to school.

A. lacked          B lacking of           C. lack of           D. lacking

 _______ in her skirt, the little girl tried to make herself ________ at the party.

 Generally speaking, when___ according to the directions, the medicine has no side effect.

 Under a big tree _______, half asleep.

           Professor Hawking stepped into the office he knew that there was no hope.

 This medicine will                    him of his cough.

The thief                  , they were happy to shout loudly.

With a lot of difficulties ___ , they went to the seashore and had a good rest.