Cells either divide too fast or at the wrong time, _______ it difficult for the body to function________.

A. making; properly　　　　　　  B. make; proper

C. making; proper　　　　　　  D. make; properly

A. making; properly　　　　　　  B. make; proper

C. making; proper　　　　　　  D. make; properly

In her body, cells either divide too fast or at the wrong time, ____ it difficult for the body to

　 function properly.

　 A. made　　　　　 B. making　　 C. to make　 D. having made

Cells either divide too fast or at the wrong time, ________ difficult for the body to function ________.

1. A.
   making it; properly
2. B.
   make it; proper
3. C.
   making that; proper
4. D.
   make that; properly

Cells either divide too fast or at the wrong time, ________ difficult for the body to function ________.

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