双基限时练(八) unit 4 communication workshop ⅰ.完成句子 1．they are going to ________ ________ ________ ________ (进行他们的实验)next week. 答案 carry out their experiment 2．i think it is meaningful ________ ________ ________ (找到) a way to settle this problem. 答案 to find out 3．________ ________ ________ ________ (不时地) i will
