【推荐1】The old woman looked at me with a cold stare, making me so ________ (frighten). （所给词的适当形式填空）

【推荐2】They were   _________ (fright) that there would be another earthquake. (所给词的适当形式填空)

【推荐3】On the first day of school, Han Jing didn’t feel ________ (frighten) at all, because she believed she would make new friends there. (所给词的适当形式填空)

【推荐1】When I returned there, I found my bag ________ (go). （所给词的适当形式填空）

【推荐2】—What do you think of the teaching profession, Bob?
—I find it fun and________ (challenge). It is a job where you are doing something serious but interesting. （所给词的适当形式填空）

【推荐3】He found his new job a little ____（challenge）. （所给单词适当形式填空）