克里斯整天在花园里不停地敲打着。

Chris was hammering ___away in the garden all day.

他们闲聊了一会儿，因为马尔科姆得等机场出租车。

They chatted ___away for a while as Malcolm had to wait for the airport taxi.

她一直工作到午夜，不停地写论文。

She worked ___away on her thesis until midnight.