He paid for a seat,when he ___ have enter free.

He paid for a seat,when he ___ have enter free. He paid for a seat,when he ----have entered free.A.could B.w He paid for a seat,when he could have entered free. He paid for a seat when he _____ have entered free.(could /w he paid for a seat ,however,he ___have entered free 一道情态动词的选择题David paid for a seat,when he __have entered free. He looked ___ the room and ___ a seat.A:for find B:at see C: He took some money ___ his pocket and paid for painting.A.ou He paid ___ of the money for the books. He __(have) a bath when the telephone ___(ring) When he was a child he ___. When he heard the noise,Peter went out ___ ___ to have a loo