问题
选择题
Are those your pen friends? Yes, .
A．they are
B．they’re
C．they are not
D．they
答案
答案：A
题目分析：回答中是Yes，故排除C。而D选项中没有be动词，排除。在回答一般疑问句时，they are 不能缩写，排除B。只有A是正确的。故选A
点评 ：此句如果考否定回答应该是：No，they are not.或者No，they aren’t.