When his father came into his room Tom pretended a book.A. to read B. to have read C. re

问题补充：

When his father came into his room, Tom pretended a book.

A. to read

B. to have read

C. reading

D. to be reading

答案：

A. to read

B. to have read

C. reading

(答案→)D. to be reading

解析：pretend后面接不定式，故先排除Ｃ。再从时间状语When his father came into his room说明read这个动作正在进行。故用不定式的进行式，选择答案Ｄ。