孩子们放学后直接去操场。

The kids ___go straight to the playground after school.

我们明天早上去公园吧，中午前就得走。

Let's go to the park tomorrow morning, we'll have to ___go before noon.

他们经常去图书馆学习。

They often ___go to the library to study.

这台机器运转得很顺畅。

This machine is ___going smoothly.

天气突然变冷了。

The weather has ___gone cold suddenly.