It was not until the early 1950s ______most tape recorders began using plastic tape as they do today.

---_____that he picked up his uncle at the airport?

It is the ability to do the job, not where you came from or what you are_____ matters.

I have always been honest and straight forward, and it doesn’t matter ____that I’m talking to.

         to gain access to seats at college      the seniors are working hard．

I wonder        that makes him so sad.

Was it on that morning ________ you left for Beijing ______ he discovered our secret?

_______was last night ______I read about the history of English.

__________ that has caused the trouble and ________ that we should scold(批评).

It’s not what you say ______ matters, but what you do.