linhchimelt 1/28/2024 2:08:09 PM
  1. The safe _______________ of nuclear waste is a major international problem.

          A. disposal                         B. abandon                        C. display                          D. sale

  1. He is collecting coins and he has a valuable _______________ of rare coins.

          A. number                          B. pile                                C. packet                           D. collection

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