【正文】
_____(understand)what you are trying __________(say). 10. He could see the smoke ______________(rise) from the chimney (煙囪 )when he ______(walk) past your house at this time yesterday. 。 6. give 7. hamburgers 8. help, do 9. to understand, to say 10. rising, walked 。 _______ _______, please. The class begins. 18. 你收到過禮物嗎? Have you _______ _______ _______? 19. 快點,