我想问一下：在I am sure to sing the song.中,表语是哪部分?（sure to sing the

我想问一下：在I am sure to sing the song.中,表语是哪部分?（sure to sing the I am sure you know the song happy Birthday you must sing thi 根据首字母填空I 've practised the song t ,so i am sure I can sing i I am sure to I can pass the test very well.这是用be sure to do I am good at （ ）.a：sing b：to sing c:singing d:the I am sure Mary _____ (invite) to the party tomorrow I am not sure if he to the party I am sure to have f at the party tonight. I am sure to pass the exam.(同义句） 英语翻译谁能帮我翻译一下我唱一首歌的一部分给每一个人?I sing a song to the part of ever the students are learning ( ) to sing the song sing the song ___-the piano on with at to选哪个?答案为什么是 to