I. combine the pairs of sentences using To+ INF
1. A child needs to learn t take responsibility for their actions. It's very necessary.
It's very necessary   .................................................................................................
2. WE can't find a suitable candidate for this position. That is difficult.
It   ...........................................................................................................................
3. Mai received a letter from her mother. She wwas happy.
Mai was  ...................................................................................................................
4. My parents know that I' ve received an award for the best student of the year. They feel delighted.
My parents are delighted  ........................................................................................................................
5. My sister is able to solve every problem quickly. She is pround of it ( ability)
My sister is pround of  .............................................................................................................................
6. We have heard that Ann is feeling better now. We are relived.
We are ...................................................................................................................................................