are my sister’s pencils and my ruler.A. Those; thatB. These; that’sC. This; that’sD. Tha

问题补充：

are my sister’s pencils and my ruler.

A. Those; that

B. These; that’s

C. This; that’s

D. That; this is

答案：

A. Those; that

(答案→)B. These; that’s

C. This; that’s

D. That; this is

解析：代词辨析题。第一空根据pencils可知缺少指代复数的词；第二空根据my ruler可知缺少单数