Question

用所给动词的适当形式填空 －Listen! What ________ they ________ (do) ? －They ________ (sing) songs． －Then what ________ they ________ (do) this afternoon? －They ________ (buy) something for Mr.Li．

Answer 1

答案：
解析：

are　doing　are singing　are　going to do　are going to buy