網校職稱英語每日一練免費在線測試系統(tǒng)將為所有學員免費提供練習題，所有學員登錄成功之后即可免費練習。如有疑問可以到答疑板與專家進行交流，24小時之內即可得到滿意答復。歡迎大家積極參與！

補全短文

At least one out of every five elementary school students in the US has trouble learning to read， even when the students are good at other subjects. ________.

A.Many adults are interested in matching sounds with letters.

B.The students also practiced reading aloud and spelling.

C.In lower level readers， this structure remains inactive.

D.The biggest challenge for many of these kids， scientists say， is matching sounds with letters.

強烈推薦：掃一掃，關注我們的微信，更快獲取職稱英語報考動態(tài)信息及相關備考資料，職稱英語考試官網微信公眾號：zhichengenglish，歡迎添加！