Can you tell me __________—Sure. He lives on Center Street.

I walked to the top of the hill with my friend, _____ we enjoyed a splendid view of the lake.

You’d better fix the machine I have told you. Otherwise， you may make more problems.

The teacher explained the question clearly to impress his students ________ its importance.

Perhaps most puzzling of all, _____ able to make sense of _____ we heard and distinguish the mistakes and errors from “good” language?