单项选择题
She（）a new idea for increasing sales.
A.came up with
B.came up at
C.came by
D.came for
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单项选择题
The father advised her to avoid the mistake made by many couples of marrying for the wrong reasons（）he found the young man charming and intelligent.
A.as though
B.even though
C.because of
D.due to -
单项选择题
There have been many（）in their marriage but they still love each other.
A.ups and downs
B.from head to toe
C.time and again
D.over and over -
单项选择题
The local government tried its best to ensure each of its citizens a（）supply of food at regular intervals (时间间隔).
A.consistent
B.continual
C.continuous
D.numerous
