The boy was too poor to have an oil lamp．So he had to read with the help of the light which es ________the hole________ the wall．A.from，onB.through，inC.into，acrossD.past，on
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B解析分析：through the hole(穿过洞)；on the wall和in the wall都解释为“墙上”。on the wall是指表面上，而in the wall是指墙的内部，如：There is a map on the wall．/There is a hole in the wall．(延伸)1)There are many apples on the tree．树上有很多苹果。(苹果是长在树上的)/There are many birds in the tree．(树上有很多鸟)(鸟不是长在树上的) 2)on the ground(在地上)；in the ground(在地下) 3)on the playground＝in the playround 4)on a bus，on a train，on a ship，on a bike(但in a car) 5)in the street，on the road．