now people are getting ill more easily because of ------(pol

now people are getting ill more easily because of _pollution_____(pollute)we should recycle those _usable_____(有用的） things。i'll go shopping with you _unless_____(除非） it rains tomorrow。the news reports some factories are _producing_____(produce) some poisonous rice。i think we can find a good way to ___solve____(解决）the difficuly problems。if i am not rich ,i am not going to buy a house。(同义句转换）—Unless——i am rich ,i am not going to buy a house。