____ ,I have never seen anyone who is as energetic as Barack Obama.
| A．As long as I have interviewed many leaders |
| B．Since I have interviewed many leaders |
| C．Many leaders although I have interviewed |
| D．Many leaders as I have interviewed |
. Why don’t you bring ______ to his attention that you are too busy to do it?
| A．this | B．what | C．that | D．it |
. They live on a busy main road. ______ must be very noisy.
. They are good friends. _______ is no wonder that they know each other so well.
| A．This | B．That | C．There | D．It |
. Does ________ matter if he can’t finish the job on time?
| A．this | B．that | C．he | D．it |
. — I don’t know whether I should go abroadornot, Mum.
— I leave _______ to your own judgment whether you should do it.
| A．that | B．it | C．this | D．what |