下列句子没有语病且句意明确的一项是（）

You’d better not phone the manager between 7and 8 tomorrow evening; he _______an important meeting then.

下列句子不含古今异义词的是（）

Have you got any particular plans for the coming holiday? —Yes.________，I’m going to visit some homes for the old in the city.

Do you know who said the famous __ ___ “one small step for a man, one giant leap for mankind”