题文
—I think it is going to be a big problem.
—Yes, it could be.
—I wonder ______ we can do about it. (北京 2002春季)
| A．if | B．how | C．what | D．that |
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—I think it is going to be a big problem.
—Yes, it could be.
—I wonder ______ we can do about it. (北京 2002春季)
| A．if | B．how | C．what | D．that |
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