"Thanks" ____ in everyday English. A.often use B.is used often C.use often D.is often used

问题描述:

"Thanks" ____ in everyday English. A.often use B.is used often C.use often D.is often used

答案:D
often 频率副词放在系动词、助动词或者情态动词之后,放在实义动词之前.