2문제만 질문 드려요 ^^

1. 다음에 어울리는 표현은?
the concept of the greenhouse, __________ plants inside glass
houses, is just one of the results of an industrial revolution.
(a) for cultivation (b) cultivates to
(c) the cultivation of (d) the cultivating

2. 다음 중 문법적으로 잘못된것은?
(a) no one but him could have recognized john.
(b) the three thousand coffeehouses in london were centers of reading as well as of talking.
(c) one way to keep from hearing sound is to use ear plugs.
(d) lee looked that he had been in some strange land.