It was______ the policeman came______ the parents knew what had happened to their son.
A. before; as
B. until; when
C. not until; that
D. until; that
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I______you with the funds. Why didn't you ask me？
A. could have provided
B. should have provided
C. must have provided
D. ought to have provided
Unfortunately, he didn't______to read the agreement carefully before signing it.
A. bother
B. disturb
C. occur
D. happen
A．go outB．appearC．come outD．disappear
A. go out
B. appear
C. come out
D. disappear
At first 1 thought I understood what she said, hut the more I thought about it, ______.
A. the more did I become confused
B. the more 1 became confused
C. the more confused became I
D. the more confused I became
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