She didn ’ t mind __________________(misunderstand) again and again. 17. With so much homework ____________(finish), I won ’ t go to bed until midnight. 18. To return to the problem of water pollution, I ’ d like you t o look at a study ______ (conduct) in Australia in 20 19 . 19. Professor Chen will attend the conference ________________ ( hold ) in Shanghai next week. 20. _____________(teach) many times, the little girl still had difficulty (in) playing tennis.