单项选择题
A.muchB.moreC.manyD.over
The tone ofthe article is（）.A.indifferentB.objectiveC.p...
单项选择题The tone ofthe article is（）.
A.indifferentB.objectiveC.persuasiveD.pessimistic
The 104-year-old woman wanted to convert her heating sy...
单项选择题The 104-year-old woman wanted to convert her heating system to gas because（）.
A.gas was cheaper andsafer than coalB.she had to carry thecoal home by herselfC.coal caused pollutionD.she had to lug theashes out of the basement
The word “burden”in the article means all of thefollowi...
单项选择题The word “burden”in the article means all of thefollowing EXCEPT（）.
A.ashesB.heating systemC.negative feelingsD.the painful past
