Ithinkeveryoneshouldwearsuitableclothes

问题详情：

I think everyone should wear suitable clothes ____ different occasion.

            A. in                        B. on                          C. at                              D. into

【回答】

B    考查固定搭配on different occasion意为“在不同场合”。故选B。

知识点：介词和介词短语

题型：选择题