下列各句中，加点的成语使用正确的一项是（ ）

Thousands of foreigners were _____ to the Shanghai World Expo the day it opened. [ ]

Steve has got the first prize in the maths contest — ______ is no wonder that he looks so happy today

What is he doing for vacation He’s_________her brother.

Is this photo taken in Tibet—Yes. You can see beautiful snow mountain in the of the photo.