题目内容
18．________online courses can produce good results remains to be seen．（ ）| A． | That- | B． | Whether | C． | Who- | D． | Where |
分析 网上课程是否能取得好效果仍然拭目以待．
解答 答案：B．
本句的谓语部分是"…remains to be seen（拭目以待），可推知前面的部分为一个表示疑问的主语从句，根据句意"网上课程是否能取得好效果"可知选用whether；故答案为B．
点评 分清不同名词性从句的具体用法和所使用的连接词至关重要．
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