Ⅰ.单句语法填空/单句改错
1．These are the rules that are familiar________everyone.
答案： to
2．I have a hard time________(pay) attention in school.
答案： paying
3．You should be________(caution) when you cross the street.
答案： cautious
4．He stood in the doorway，________(stare) at Doctor Winter.
答案： staring
5．Ambulances took the________(injure) to a nearby hospital.
答案： injured
6．As a student，it is bad manner to come late to class.
答案： manner→manners
7．Hearing the exciting news，the boy couldn’t help jump with joy.
答案： jump→jumping
