Mistakes of this kind ________ on students’ papers.
8.Mistakes of this kind ________ on students’ papers.
a. often appears b. often appear c. is often appeared d. are often appeared
参考答案:个人认为a对
主语“这种”是单数,又appear为半系动词无被动,所以选a
8.Mistakes of this kind ________ on students’ papers.
a. often appears b. often appear c. is often appeared d. are often appeared
参考答案:个人认为a对
主语“这种”是单数,又appear为半系动词无被动,所以选a