Look at the group of children reading books ,How happily they __ __?意思为“看着群正在看书的孩子们,他们玩得多开心啊”横线处填什么?嗯.are having 呢.

问题描述:

Look at the group of children reading books ,How happily they __ __?
意思为“看着群正在看书的孩子们,他们玩得多开心啊”
横线处填什么?
嗯.are having 呢.