介詞填空
1.I need some books _in__chemistry (有關(guān)化學(xué)方面的書籍)
2.entry__the_museum is free,so you can visit it as often as you like.
3.We traveled to the museum__by_subway
(乘坐交通工具.公式=by+ 交通工具.例如：by bus 坐公交.
by train 坐火車 )
4.My bast frient's photographs were first put__on_display in Tibet
(on display 展覽)
選擇
1.in autumn the ground is always covered with__
選 B.fallen leaves
A.falling leaves跟 B.fallen leaves 的區(qū)別在于：falling leaves 表示正在落,可以想象為枯葉正被秋風(fēng)吹著,在半空中飛舞.
fallen leaves 則是 飄落在地上的了.