Choose a, b, c or d to complete the following sentences

Choose a,b,c or d to complete the following sentences.
1. have you                                 seen a rainbow ?
  A. never     B.before    C. after   D. ever
2.Exercising is good                               don't do too much hard.
  A. and       B.but        C. although     D.so
3.To play badminton or tennis well, you need to have a good                        .
A.glove     B.balll.       C.rod     D.racket