1.-this is the first time for me to （填个以C开头的单词） my birthday in a foreign country.
-Happy birthday to you!
2.Mr.Wang is a good English teacher.He has rich (以e开头的单词）in teaching English.
3.you'd better read the (以i开头的单词）before you use the machine.
4.many visitors are (以a开头的单词）by the beautiful scenery of Mountain Meng.