Choose the right variant. 1. you __ take care of you. a) should b) ourght to c) must 2. don't you see i'm tired? you __ me, you know. a) might have helped b) could help c) may help 3. police __ work on holiday in the usa. a) could b) might c) must 4. we __ learn from the past. a) may b) need c) must 5. we __ commemorate great people. a) must b) need to c) may 6. excuse me, __ you tell me the way to the houses of parliament, please? a) could b) may c) must