본문/내용
101. The bridge _____ and fell into the river.
(a) quake
(b) breaks
(c) cracked
(d) collapsed
102. She has put _____ a lot of weight since last year.
(a) in
(b) on
(c) over
(d) up
103. The modern steam engine was first _____ to facilitate the mining of coal.
(a) using
(b) used
(c) use
(d) useful