________ you don’t lose heart, I’m sure you can pass the coming examination.

________ you don’t lose heart, I’m sure you can pass the coming examination.

A．Unless            B．If not             C．As long as         D．Although

_____ you don’t lose heart, I’m sure you can pass the coming examination.

A. Unless　　　　　 B. As long as　　　　 C. If not　　　　　　　 D. Although

________ you don’t lose heart, I’m sure you can pass the coming examination.

1. A.
   Unless
2. B.
   If not
3. C.
   As long as
4. D.
   Although

_____ you don’t lose heart, I’m sure you can pass the coming examination.

A. Unless            B. As long as         C. If not               D. Although