The machine has been used much too long. _____ it doesn’t work well sometimes.

A. It’s no wonder that 　　　　　　　　 B. There’s no doubt if　

C. It’s unlikely　　　 　　　　　　　　D. That’s because

The machine has been used much too long. _____ it doesn’t work well sometimes.

   A. It’s no wonder that                  B. There’s no doubt if  

C. It’s unlikely                            D. That’s because

The machine has been used much too long; ________ it doesn’t work well sometimes．

1. A.
   It’s no wonder that
2. B.
   There is no doubt if
3. C.
   It’s unlikely
4. D.
   That’s because