Jimmy is very 1 at Maths. Mary, his sister, doesn't do well 2 it. Jimmy often helps her with her Maths. One night Jimmy and Mary took out their exercise-books and began 3 their lessons. Soon Jimmy finished 4 his homework, but his sister 5 . She couldn't work 6 the last(问题). "Let me 7 you," said Jimmy. "No, please 8 . I'll do it myself, " said Mary. She thought hard, an hour 9 , she worked it out. She was very tired, but very, very 10 .
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( )1. A. good ( )2. A. at ( )3. A. to make ( )4. A. do ( )5. A. couldn't ( )6. A. on ( )7. A. to help ( )8. A. didn't ( )9. A. after ( )10.A. sorry |
B. better B. in B. do B. to do B. don't B. out B. to speak B. couldn't B. later B. bad |
C. fine C. on C. to do C. did C. needn't C. at C. help C. can't C. behind C. happy |
D. well D. of D. of D. doing D. can't D. for D. to tell D. don't D. in D. angry |