Look! That fellow is too sleepy to work. He ______ up reading until midnight.

A. mustn't stay                                  B. mustn't have stayed

C. ought not to stay                              D. should not have stayed

Look! That fellow is too sleepy to work. He ______ up reading until midnight.

A. mustn't stay                         B. mustn't have stayed

C. ought not to stay                    D. should not have stayed

Look! That fellow is too sleepy to work. He ______ up reading until midnight.

1. A.
   mustn’t stay
2. B.
   mustn’t have stayed
3. C.
   ought not to stay
4. D.
   should not have stayed

 Look! That fellow is too sleepy to work. He ______ up reading until midnight.

      A. mustn't stay             B. mustn't have stayed

C. ought not to stay         D. should not have stayed

 Look! That fellow is too sleepy to work. He ______ up reading until midnight.

A. mustn't stay                                  B. mustn't have stayed

C. ought not to stay                              D. should not have stayed