词汇运用 用括号内所给词的适当形式填空（每空不限一词）（共10小题；每小题1分，满分10分）
小题1:The real ______________ (hero) of the match were the players in our school.
小题2:We ______________ (ring) someone to come and help when you saw us.
小题3:We hope you can receive our ______________ (invite) and join us.
小题4:This pen looks _______________ (shine) and beautiful. I think it must be more expensive than mine.
小题5:You should read at ____________(little) ten pages of the book every day.
小题6:It’s raining very hard, so I decide _______________ (not go) out.
小题7:Hurry up! The film will start at 7:00. There’s little time ___________(leave) for us now.
小题8:My mother looked ____________ (angry) at my brother without saying a word.
小题9:Keep __________ (work) on the problem, you will work it out soon.
小题10:My home is full of people today, because it is my father’s ______________ (fifty) birthday.
，若已知
的质量为m1，
的质量为m2，
的质量为m3，中子质量为m4，下列说法正确的是 [ ]
和
是两种不同元素的原子核 
和
在常温下就能够发生反应 