根据句意和汉语注释,在答题卡标有题号的横线上,写出单词的正确形式。 小题1:Everybody knows people and animals need clean air to ___________(呼吸). 小题2:Have you heard of the early ___________(移居者)problems on Mars. 小题3:There are __________ (各种各样的) designs of shoes for shoppers to choose from. 小题4:One of the __________(缺点) of living in Singapore is that we are not used to the food there. |