----How about the pollution in the countryside?
--- Luckily, it's not as serious as _______ in the big cities.
A.that | B.it | C.one | D.Those |
----How about the pollution in the countryside?
--- Luckily, it's not as serious as _______ in the big cities.
A.that | B.it | C.one | D.Those |
试题篮
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