问题
Was ________ problem solved?—We were trying to think of ________ way out, but it was difficult to find one.
A:a; a
B:a; the
C:the; a
D:the; the
B:a; the
C:the; a
D:the; the
正确答案是：
同类题型
ildren, ______ had played the whole day long, were worn out.
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