（ ）encourager括号里面填a还是an?

（ ）encourager括号里面填a还是an? ()800-metter races 括号里填an还是a She is ( ) university student.(括号中填a还是an?) There is ( )way .括号中填a还是an, Jane knows a l（ ）【许多】about China 括号里面是填lot还是lot of 有时,with=a I ______ （watch） a cartoon on Saturday括号里面填什么,是be动词过去式还是watc （ ）old woman是填a还是填an it is ( )eye括号填a/an I am is ( ) active gril.括号中该填a还是an Have you got _____one-yuan coin括号里填a 还是an 填空：You're dropped ( )"s" in the word "necessary"括号里填 a 还是 an Tom is( )good English boy.括号中填冠词a还是an,原因是什么?