Mr Wu said he ( took ) ( two ) foreign students around our school ( the ) ( day ) ( before )(yesterday或者省略).
The suspect said he ( was ) (just) at his sister's birthday party at that time the day before.
Mr Wu said he ( took ) ( two ) foreign students around our school ( the ) ( day ) ( before )(yesterday或者省略).
The suspect said he ( was ) (just) at his sister's birthday party at that time the day before.