Warm up Ask learners what kind of problems can occur when ordering goods from another company. Get learners to look at the departments and check they understand what they do (Review Unit 4) Ask them to look at the pictures on the textbook and decide which department is responsible for each problem 返回Warm up  Ask learners what kind of problems can occur when ordering goods from another company.  Get learners to look at the departments and check they understand what they do (Review Unit 4)  Ask them to look at the pictures on the textbook and decide which department is responsible for each problem. 返 回