The old man sat in front of the television every evening, happy ________ anything that happened to be on.[ ]

On the third floor there are two rooms, _____ is used as a meeting-room. 　　[ ]

Bake is intelligent and experienced. — That is ________ his advantages lie in applying the post.

Excuse me, could you tell me where ______ in the group-buying— Sure, sir. You can try www.taobao.com.

Would you like to climb mountains with me this Sunday—I’d love to. But I _______ play table tennis against Class Three.