보기처럼 두 문장이 같은 의미가 되도록 한 문장으로 바꿔 쓰시오.
보기
i bought a new cell phone. a long-life battery was included with it.
→ i bought a new cell phone with which a long-life battery was included.

(1) the lecture will be in the classroom. the classroom has many desks.
→ the classroom in which the lecture will be has many desks

(2) this is a photo of john. i went to college with john.
→

(3) grapes are raw materials. wine is made from grapes.
- grapes from which wine is made are raw materials.

2번은 어떻게하나요??
this is a photo of john with whom i went to college.
이럼되나요?1,3번도 답확인부탁드려요~