We ____ here two hours ago . We____here for two hours .

________ when does that shop stayopen —About midnight.

owed the visitors around the museum, the construction _____had taken more than three years.

下列各句中，加点的成语使用正确的一项是（ ）

orts to raise money for his program were ______ because, no one showed anyintention to take a cent out of their pockets.