During their dinner, he told his wife about his failure in his work. Lan found it difficult to accept the situation

During their dinner, he told his wife about his failure in his work.
=>While.....................................................
Lan found it difficult to accept the situation.
=>Lan had........................................
the exercise was so difficult that we couldn't do it.
=>The exercise was not...........................................
No one can find the answer to the question.
=>The answer...................................................................
The farmers had applied new technology in their fields and the output of rice was raised.
=> Thanks to....................................................................
1.I ...... this morning, and was late for school(sleep)
2.We left the town...... before the lava hit it (safety)
3.We should make themost efforts to stop........(forest)