根据下列句子及所给汉语注释或通过上下文，写出空缺处各单词的正确形式。每空只写一词。
小题1:Look, the students are _____________________ ( 收集) things for Project Hope.
小题2:Eddie, don’t _____________________ (吓唬 ) my friend. It’s not polite.
小题3:Sam looks much _____________________ (健康的) than before now.
小题4:The workers need a _____________________ (令人愉快的) environment to work in
小题5:Einstein was one of the greatest _____________________ (科学家) in the 20^th century.
小题6:I plan to go on a trip in _____________________ (七月).
小题7:Laughter is the best _____________________ (药).
小题8:We should share our sadness _____________________ of keeping them to ourselves.
小题9:-- Do you _____________________ that he can cook healthy and tasty meals?
--- No. He likes telling lies to others.
小题10:We are going to celebrate my father’s _________________ birthday. He is 40 years old now.