We are going to the Sydney Opera House __是in two weeks还是for two weeks
问题描述：
We are going to the Sydney Opera House __是in two weeks还是for two weeks
答
是in two weeks
因为are going to 一方面表面的是将来时态,另一方面go是去这个动作的意思,所以用in two weeks这个时间点
要用for的话,应该是We will be in the Sydney Opera Housefor two weeks