50. The room was so full that we couldn't get in. A. The room was too full for us to get in. B. The room was too full so that we can't get in. C. The room was too full that we can't get in. D. The room was too full that so we can't get in. 46. The flat was so dirty that we could not stay there. A. The flat was too dirty to stay. B. The flat was too dirty for us to stay there. C. The flat was too dirty so that we couldn't to stay there. D. The flat was such dirty that we couldn't