i am very happy to be here 为什么是to be here```

i am very happy to be here 为什么是to be here``` i am very happy to be here with you this evening为什么用to be I am very happy to work here I am very glad to be here."here"前为什么加"be",而I have many frien You don't know how happy I am to be here.to be可以省略吗? here i am to be togetther是什么歌 i am very happy to stand here 有语病么 i am very glad（ ）here A to be B be C come 英语翻译Today I am very glad to be here to share with you my ide 帮忙改改英语自我介绍I am very glad to be here to introduce myself.My n I'm very happy to be with all of your here . i am very happy to have chance to be