39-40 She __39__ a lot from listening to the English program every day. She made a lot of improvements in her listening ability. She found it __40__. 【題組】39 (A) benefit (B) benefited (C) beneficial (D) beneficially
40. A series of experiments to test the new drug _______ carried out, but so far it still can’t prove to be an
effective drug.
(A) was (B) were (C) has been (D) have been