Q4. Fill in each blank space with a word formed from the word in brackets. (4 marks) (efficient) Example: She is admired for her She is admired for her efficiency. 1. First, no one took notice of her invention, but later they started to Really that it was very useful. (real) 2. The technician checked the engine carefully to there are no faults. (sure) energy. (new) 3. The government is spending a lot of money on research in 4. Ahlia University is planning to upgrade the existing lab equipment. (exist)