根据首字母或汉语提示，用单词的正确形式填空。
小题1:The climate is becoming worse and worse because of the ______________(毁坏) of the environment.
小题2:The monster is so ______________(神秘) because nobody has ever seen it.
小题3:Samantha is always s______________ about everything, and she never trusts anyone.
小题4:______________(组合) of letters may be read in different ways.
小题5:Callum is one of his best c______________, and they work in the same office.
小题6:Everyone is ______________(禁止) to copy other’s homework.
小题7:L______________ is the study of languages.
小题8:C______________ with his house, this one is relatively cheap.
小题9:The shop sells v______________ of goods, which sometimes make it hard to choose.
小题10:We were shocked by the ______________(宣布) that the foreign minister died.