题目内容
It is difficult for any of us to eat better, exercise more, and sleep enough ________ we know we should.
[ ]
A.because
B.even though
C.as if
D.unless
答案:B
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题目内容
It is difficult for any of us to eat better, exercise more, and sleep enough ________ we know we should.
A.because
B.even though
C.as if
D.unless