I think his Japanese has improved quite a bit, hasn't it?

I am busy with work during the daytime.

His research covers a wide range of topics.

He made a fake snore, pretending to be asleep.

He measured the cloth using a bamboo measure.

Using the character '嵜' gives the same meaning as '崎'.

This building is very tall.

This building boasts the maximum height in this town.

The eagle is flying freely in the sky.

The hawk is flying high in the sky.