单选题—It’s said that the new highway has been completed.—Yes, but we don’t know ______it’s to be opened to traffic soon.AwhichBwhenCwhetherDsince
单选题
—It’s said that the new highway has been completed.—Yes, but we don’t know ______it’s to be opened to traffic soon.
A
which
B
when
C
whether
D
since
参考解析
解析：
句意：—听说新的高速公路已经建成了。—是的，但是我们不知道它会不会很快通车。本题考查宾语从句，whether在这里表示“是否”。since不引导宾语从句，D项排除。因为句尾有soon，所以不能用when，B项排除。which在这里意思说不通。因此，正确答案为C。
句意：—听说新的高速公路已经建成了。—是的，但是我们不知道它会不会很快通车。本题考查宾语从句，whether在这里表示“是否”。since不引导宾语从句，D项排除。因为句尾有soon，所以不能用when，B项排除。which在这里意思说不通。因此，正确答案为C。
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