问题
选择题
--I'll be waiting for you at home.
-- ______ I were busy and couldn't come?
A．What if
B．What when
C．How if
D．How when
答案
答案：A
题目分析：考查情景交际。句意：--我会在家等你。--假如我很忙而不能来会怎样？What if假如......将会怎样。故选A。
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