It was a nice meal, _______ a little expensive.

It's important to learn how the whole system works. Sometimes, ________， it's the details that interest us the most.

He waited ________ the volcano became quiet and he was able to return two days later.

-----“How long have you stayed in this hotel?”----- “Not long, just ______ this Monday.”

Charlie was a rich boy who had more toys than you could imagine. A time came when he was so used to all his toys __________ he began to want something different.