题目内容

— Oh, Mary, what shall we do with our son? He __________ things about. — It’s really annoying.

A. is always leaving
B. has always left
C. always leaves
D. always left

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He is very busy these days. He __________ a novel.

A. writes
B. is writing
C. has written
D. will write

If my secretary __________ in the office when you get to the company, please tell her to go home.

A. works
B. has worked
C. is working
D. will work

1、要输入双字符键的上半部字符（）。

A. 先按住Ctrl键，再按该双字符键
B. 先按住Alt键，再按该双字符键
C. 先按住shift键，再按该双字符键

键盘可以分为五个区，26个字母键属于（）

A. 主键盘区
B. 功能键区
C. 编辑键区
D. 小键盘区