【题目】We are _______ and we are singing _______ . ( )
A. happy; happy B. happily; happily C. happy; happily
【答案】C
【解析】
我们很开心,我们开心地唱着。

【题目】We are _______ and we are singing _______ . ( )
A. happy; happy B. happily; happily C. happy; happily
【答案】C
【解析】
我们很开心,我们开心地唱着。