19、看这些东西，帮刘老师想办法。让艾伦给他妈妈捎一些：（一串钥匙，提包，一些漂亮的植物）。钥匙在沙发上，提包靠着闹钟，植物在书橱后。

19、Dear Alan,

      Please take these things to your mother: her a set of keys, bag and some nice plants. Look! The keys are on the sofa, the bag is near/next to the alarm clock, and the plants are behind the bookcase.

                                                        Thanks,

                                                        Miss Liu