Ex. 1. (a, b) explain the meaning of “can” (ability, permission, request, prohibition, possible action) in the following sentences. 1. she is unwell, she can’t leave her room. 2.can i smoke here, mrs right? 3. the teacher said theycould all go home. 4. a policeman arrived and told him hecouldn't park there. 5. my son is not in town; but he’ll be here before long. -can i give him any message? 6. wecan discuss it now. 7 .1could never understand what made her behave as she did. 8. ifyou are tired youcan lie on the sofa for a bit. 9. “life,”the old man said,“can only be understood when you are old. now i see all the mistakes icould have avoided. ” 10. we are in charge of this great business. wecannot leave our responsibility to others. 11. he was surprised that shecould paint so well. 12. she is not married though shecould marry anybody she chose.