问题
选择题
________ we go swimming every day ________ us a lot of good.
A．If...do
B．That...do
C．If...does
D．That...does
答案
答案：D
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________ we go swimming every day ________ us a lot of good.
A．If...do
B．That...do
C．If...does
D．That...does
答案：D