用所给词的适当形式填空（5分）： 小题1: I have been in No. 2 Middle School for two years. I don’t worry about _______________ (not have) new good friends. 小题2: The big birthday cake _____________________ (divide) into ten parts tomorrow. 小题3: It is silly of you __________________ (not forgive) others for their faults. 小题4: I think he is __________________________ (suitable) person for the job of all. 小题5: My grandma is in a good mood because tomorrow will be her__________ birthday. (nine)