【简答题】A.It's difficult to find birds for recording. B.It's difficult to find quiet areas for recording. C.It's difficult to find animals for recording. D.It's difficult to find mammals for recording.
【简答题】A.They wanted to find out }tow to become wealthy. B.They wanted to find out how to live longer. C.They wanted to know what alcohol he drank. D.They wanted to know where to be given an injection.