HS 171 HS171.1 - always check x4 (Dan)HS171.2 - Why does she want you to learn English? 2Q x2 (Dan) HS 172 此堂課無音檔 HS 173 HS173.1 - verb + ing 4Q x3 (Dan)HS173.2 - favorite subject x2 (Dan) HS 174 HS174.1 - favorite 3Q x2 (Dan) HS 175 此堂課無音檔 HS 176 此堂課無音檔 HS 177 HS177.1 - have to - pay attention 4Q x1 (Dan) HS 178 此堂課無音檔 HS 179 HS179.1 - problem x8 (Dan)HS179.2 - favorite season x2 (Dan)HS179.3 - have to do today x3 (Dan) HS 180 HS180.1 - how often x1 (Dan)