45. Her younger sister is _______ young _________ go to school.

   A. so, that         B. too, that       C. too, to      D. enough, to

A

    Class One had a great time on the school trip. They   46     Blue Water Aquarium for the day.    47   they visited the Visitor's Center and watched a movie about sharks. Then they watched a dolphin show.   48   , they went to the Outdoor Pool and saw a big octopus. After lunch, they went to the Gift Shop and bought lots of gifts. Finally,  49  , they took the bus back to school. At the end of the day, the science teacher was very happy   50   the class monitor cleaned the bus after the trip.

44. It takes Miss Black half an hours ____________her homework every evening.                                                                

   A. finish          B. finishing       C. to finish    D. finishes