至急:関係詞を用いて2文を1文にお願いします

※省略できる関係代名詞は()でくくる

The man is sitting over there. He wrote that best-selling novel.
The man_______________________________________________

The book is for the students. Their native language is not English
The book is_______________________________________________

She showed me the letter. She received it from her boyfriend.
She_________________________________________________________

The bed wasn't very comfortable. I slept in it last night
The bed________________________________________________

No.1 ベストアンサー 回答者： wind-sky-wind 回答日時： 2013/10/30 20:28

The man is sitting over there. He wrote that best-selling novel.

The man who wrote that best-selling novel is sitteing over there.

The book is for the students. Their native language is not English
The book is for the students whose native language is not English.

She showed me the letter. She received it from her boyfriend.
She showed me the letter (which または that) she received from her boyfriend.

The bed wasn't very comfortable. I slept in it last night
The bed in which I slept last night wasn't very comfortable.
The bed (which または that) I slept in last night wasn't very comfortable.