1. Question: My purse has been stolen. I … (be) careful in such a crowded place.
My purse has been stolen. I should have been careful in such a crowded place.
(The correct pattern applied to the sentence is SHOULD + HAVE + VERB 3)
So, the answer is SHOULD HAVE BEEN
2. Question: Jane is not feeling well. She … (see) the doctor.
Jane is not feeling well. She should see the doctor.
(The correct pattern applied to the sentence is SHOULD + VERB 1)
So, the answer is SHOULD SEE.
The pupils are bored with the social lesson. The teacher … (make) the lesson more interesting for pupils. *
Example:
The pupils are bored with the social lesson. The teacher should make the lesson more interesting for pupils.