题目

根据对话意思和所给首字母，写出完整正确的单词。 Cindy：Do you know Zhalong? Beibei：Yes，it's a very（1）i                wetland in the world． Cindy：Where is it? Beibei：It's in Heilongjiang Province in north-east China． Cindy：Why do lots of（2）t                 go there every year? Beibei：Because it's a nature reserve．They go there（3）f                 birdwatching． Cindy：What kinds of birds live there? Beibei：There're many different kinds of birds，including some endangered（4）o       So I’ve included some photos, ____ will help you picture the places I talk aboutA.thatB.whichC.whereD.in which