问题
选择题
He hasn't decided __ to London.
A．whether to sail or fly
B．if to sail or fly
C．whether sailing or flying
D．if sailing or flying
答案
答案：A
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He hasn't decided __ to London.
A．whether to sail or fly
B．if to sail or fly
C．whether sailing or flying
D．if sailing or flying
答案：A