In face of failure, it is important to ______ a good state of mind.

1. A.
   keep up
2. B.
   keep on
3. C.
   keep out
4. D.
   keep off

In face of failure, it is important to ______ a good state of mind.

       A．keep up   B．keep on    C．keep out   D．keep off

In face of failure, it is important to ______ a good state of mind.

In face of      failure, it is the most important to keep up         good state of mind.

1. A.
   不填, a
2. B.
   a, 不填
3. C.
   the, a
4. D.
   不填, the

In face of ___ failure, it is the most important to keep up ___  good state of mind.

     A./, a    B.a. /     C.the, /     D./, the