I have dropped ＿＿"s"in the word "necessary".Oh,＿＿letter"s"is doub_英语解答

I have dropped ＿＿"s"in the word "necessary".Oh,＿＿letter"s"is doubled.
A：a；a B：a;the C：an;the D：the;the

人气：372 ℃　时间：2020-03-29 03:04:57

解答

C."s"读做【es】读音以元音开头.
不明白的再问哟,请及时采纳,多谢!