The lens of this camera is easy to attach and remove.

His theory is very interesting.

He worked late into the night to complete his doctoral thesis.

I plan to write a short essay tonight.

It's difficult to remember the stroke order of kanji.

He picked up a pen to write down the poem.

He lost everything.

She is planning a date with her current boyfriend.

My boyfriend gave me a gift.

Everyone was surprised by the news.