Ex 20 Study the following chart. Translate the sentences into Russian

Meaning	With a Non-Perfect Infinitive (Present, Future; of past in Reported Speech)
moral obligation, advice, disapproval	You should work harder. The work should be done at once. You should be more careful next time. He should stop smoking. He said that I should thank her. You shouldn't laugh at his mistake.
Meaning	With a Perfect Infinitive (past,or prior to the moment of speech)
criticism of a past action (disapproval, reproach, regret)	You should have told him the whole truth. (But you didn't.) She should have been told the truth. (She wasn't.) I should have sent the telegram at once. (I didn't. I am sorry.) You shouldn't have mentioned the fact in her presence. (But you did.) I said that she shouldn't have let him go so early. (But she had and it was wrong.)