题目

—When _________ you have a book sale? —Sorry, I _________ know. A . are; don't B . do: aren't C . are, aren't D . do; don't 答案：D如图为海陆分布状况图，按时间的先后，排列顺序正确的是A.c、d、a、bB.a、b、c、dC.d、c、b、aD.b、d、a、c