Mike and I in the library now.A. readB. are readingC. is readingD. am reading

问题补充：

Mike and I in the library now.

A. read

B. are reading

C. is reading

D. am reading

答案：

A. read

(答案→)B. are reading

C. is reading

D. am reading

解析：本题中有个now，应该是现在进行时，结构为be+doing，本题的主语是复数，故be用复数are，故本题选B。