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【单选题】
If we had taken such effective measures much earlier, the river ________ so seriously now.A.
is not polluted
B.
would not be polluted
C.
had not been polluted
D.
would not have been polluted
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举一反三
【单选题】Why did the first thirteen colonies fight with their mother country?
A.
To stop paying taxes.
B.
To get more power.
C.
To set the African slaves free.
D.
To win their independence.
【单选题】Why did the daughter arrange Rich to meet her mother?
A.
To meet her mother and get her support.
B.
To reveal their relationship to her mother.
C.
To learn from her mother how to cook.
D.
To show her mother how they like her food.