_____ the steep mountains，he had no difficulty reaching the top.
| A．Having accustomed to climb | B．Having accustomed to climbing |
| C．Accustomed to climb | D．Accustomed to climbing |
______ is no debating that the Dallas Mavericks will defeat the Washington Wizards in the next game.
| A．It | B．As |
| C．That | D．There |
---I have looked for my keys everywhere, but I can’t find them.
---Sorry to hear that. You _____ them somewhere.
| A．must lose | B．should lose |
| C．must have lost | D．should have lost |
---What makes him so excited these days?
---________ a key university.
| A．Admitted into |
| B．Admitting to |
| C．Having been admitted into |
| D．Being admitted to |
---You didn’t lock the back door.
---You are wrong. I ______.
| A．have locked it | B．lock it myself |
| C．did lock it | D．do lock it |
If you don’t know what you want, you might _______ getting something you don't want.
| A．end up | B．pick up |
| C．turn up | D．give up |