A. also does Mary B. Mary does also
C. so Mary does D. so does Mary
2.If you _______ in taking this attitude， we‘ll have to ask you to leave.
A. insist B. resist
C. persist D. exist
3.They have to stay with us _______ the time being because they have not found a place yet.
A. during B. in
C. for D. since
4.Sixty percent of television viewers chose him as their _______ host.
A. popular B. preferred
C. favorite D. favored
5.He cleans the offices after all the workers have gone _______.
A. home B. at home
C. in home D. to home
答案解析：在“so+助动词/be动词/情态动词+主语”的倒装结构中，表示前面所述的肯定情况也适合于后者。例如：I‘m good at English， and so is my sister. 我英语学得好，我妹妹学得也好。
答案解析：insist on doing sth;persist in doing sth 坚持做某事。