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1如果不等式5-x＞7|x+1|和不等式ax 2+bx-2＞0有相同的解集，则实数a，b的值为（ ）。
A：a＝-1，b＝2
B：a＝-4，b＝-9
C：a＝-1，b＝9
D：a＝-8，b＝-10
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2方程 X 2－PX＋6＝0 的解集为M，方程X 2＋6X－q＝0 的解集为N，且M∩N＝｛2｝，那么P＋q＝（ ）。
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3a＜0，关于x的不等式x 2-3ax+2a 2＜0的解集为（ ）。
A：(a，2a)
B：(2a，a)
C：(-a，-2a)
D：(-2a，-a)
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4Water, which seems so simple and common, is ______ makes life possible.
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5Studying English lies not so much in ________we learn by heart as in ________ we really understand.
A：that; what
B：what; what
C：that; that
D：what; that
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6Jane and I have never met but from Jack told me she is lovely and fun to be with.
A：which
B：what
C：whose
D：whom
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7After ______ seemed to be hours of waiting in line, I finally got my turn to take the oral exam.
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8_____ some teenagers don"t realize is _______ difficult life can be after they getaddicted to drugs.
A：What; what a
B：What; how
C：That; how
D：That; what
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9Many years later, the father returned form the army and found that his daughter was no longer ______
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10Although Anne is happy with her success，she wonders______ happen to her private life.
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