---Mr. Black, I find ______ difficult to play the piano well.
---Oh, I think you just need to practice more
| A．it | B．it is | C．this | D．that |
相关试题
The meat is ___ dear and eating ____ meat is bad for your health .
A .very much , many B. too many , many too
C much 
too , too much D. a lot , much too
“Do you mind if I sit here?”“_____. It’s for my friend.”
| A．Not at all | B．Never mind | C．Better not | D．Certainly not. |
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