A：is going to； that is to take place
B：are going to； that is about to take place
C：are going to； that is to be taken place
D：are going to； which is to be held
下列各式计算结果为a7的是（ ）
I have to____ ____ it.
再读课文《七颗钻石》，填一填。
我知道课文中的水罐发生了一次次神奇的变化，主要有：空木水罐—____—掉在地上端端正正，水依然是满的—____—金水罐—____。
