925银放久了会变黑吗:May I have a look at your English book?(同义句)

May I have a look at your English book?(同义句) Have a look at!!!! a cat may look at a ring. A CAT MAY LOOK AT A KING I tink you might go and have a look? 这句话为什么may要用过去式，而不用may I tink you might go and have a look? 为什么这句话may要用过去式，而不用may I tink you might go and have a look? 为什么这句话“may”要用过去式，而不用may I just only want to have a look at you,请翻译一下 Let me have ______ your new books. A.look B.look at C.a look D.a look at have a look at和have a look有什么区别吗？