单项选择题I went to ______ Shanghai yesterday. On ______ train I met a famous pop star.
单项选择题Can you imagine why ______
单项选择题I tore open the box, only ______ that some papers were missing.
单项选择题With the guide ______ the way, we set off on foot into the dark night.
单项选择题The used car I bought cost four ______ pounds.